MOLECULAR DEVICES CORP
10-Q, 1999-08-10
LABORATORY ANALYTICAL INSTRUMENTS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-Q


[X]      QUARTERLY  REPORT  PURSUANT  TO  SECTION 13 OR 15 (d) OF THE SECURITIES
         EXCHANGE ACT OF 1934

         For the quarterly period ended June 30, 1999

                                       OR

[ ]      TRANSITION  REPORT  PURSUANT  TO SECTION 13 OR 15 (d) OF THE SECURITIES
         EXCHANGE ACT OF  1934


For the transition period from                         to
                               ----------------------     ----------------------

Commission File Number 0-27316


                          Molecular Devices Corporation
             (Exact name of registrant as specified in its charter)

         Delaware                                                94-2914362

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

                               1311 Orleans Drive
                           Sunnyvale, California 94089
          (Address of principal executive offices, including zip code)


                                 (408) 747-1700
              (Registrant's telephone number, including area code)


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
                                   ---      ---

As of August 9, 1999,  9,603,458  shares of the  Registrant's  Common Stock were
outstanding.


<PAGE>

                          MOLECULAR DEVICES CORPORATION

                  FORM 10-Q FOR THE QUARTER ENDED JUNE 30, 1999

                                      INDEX


                                                                            PAGE
PART I.  FINANCIAL INFORMATION                                            NUMBER

ITEM 1.  FINANCIAL STATEMENTS

         CONDENSED CONSOLIDATED BALANCE SHEETS
         June 30, 1999 and December 31, 1998.................................  3

         CONDENSED CONSOLIDATED STATEMENTS OF INCOME
         Three and Six Months Ended June 30, 1999 and 1998...................  4

         CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
         Six Months Ended June 30, 1999 and 1998.............................  5

         NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS................  6

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
         CONDITION AND RESULTS OF OPERATIONS.................................  9

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES
         ABOUT MARKET RISK................................................... 13



PART II. OTHER INFORMATION

         ITEM 1.     LEGAL PROCEEDINGS ...................................... 14

         ITEM 2.     CHANGES IN SECURITIES AND USE OF PROCEEDS............... 14

         ITEM 3.     DEFAULTS UPON SENIOR SECURITIES......................... 14

         ITEM 4.     SUBMISSION OF MATTERS TO A VOTE OF
                     SECURITY HOLDERS........................................ 14

         ITEM 5.     OTHER INFORMATION....................................... 15

         ITEM 6.     EXHIBITS AND REPORTS ON FORM 8-K........................ 15

SIGNATURE     ............................................................... 16


                                       2

<PAGE>

<TABLE>
                                         PART I: FINANCIAL INFORMATION

                                         ITEM 1: FINANCIAL STATEMENTS

                                         MOLECULAR DEVICES CORPORATION

                                     CONDENSED CONSOLIDATED BALANCE SHEETS
                              (In thousands, except share and per share amounts)

<CAPTION>

                                                                               June 30,           December 31,
                                                                                 1999                 1998
                                                                             ------------         ------------
                                                                              (unaudited)
<S>                                                                          <C>                   <C>
ASSETS:

     Current assets:
          Cash and cash equivalents                                          $ 25,036              $ 32,689
          Accounts receivable, net                                             15,908                12,958
          Inventories                                                           6,356                 4,055
          Deferred tax asset                                                    2,197                 1,630
          Other current assets                                                    786                   688
                                                                             --------              --------
               Total current assets                                            50,283                52,020


     Equipment and leasehold  improvements, net                                 2,159                 2,115
     Intangible and other assets                                                5,031                   270
                                                                             --------              --------
                                                                             $ 57,473              $ 54,405
                                                                             ========              ========

LIABILITIES AND STOCKHOLDERS' EQUITY

     Current liabilities:
          Accounts payable                                                   $  3,590              $  2,135
          Accrued liabilities                                                   2,843                 4,945
          Deferred revenue                                                      1,526                 1,502
                                                                             --------              --------
               Total current liabilities                                        7,959                 8,582


     Stockholders' equity:
          Preferred stock, no par value; 3,000,000 authorized
               no shares issued or outstanding                                      -                     -
          Common stock, $.001 par value; 30,000,000 shares
               authorized; 9,568,908 and 9,476,062
               shares issued and outstanding, at June 30, 1999
               and December 31, 1998, respectively                                  9                     9
     Additional paid-in capital                                                43,067                42,391
     Retained earnings                                                          7,329                 4,235
     Deferred compensation                                                       (370)                 (586)
     Accumulated and other comprehensive income                                  (521)                 (226)
                                                                             --------              --------
     Total stockholders' equity                                                49,514                45,823
                                                                             --------              --------
                                                                             $ 57,473              $ 54,405
                                                                             ========              ========
<FN>
                       The accompanying notes are an integral part of these statements.
</FN>
</TABLE>

                                                     3

<PAGE>

<TABLE>
                                     MOLECULAR DEVICES CORPORATION
                              CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                (In thousands, except per share amounts)
                                              (unaudited)
<CAPTION>

                                                               Three Months Ended   Six Months Ended
                                                                     June 30,            June 30,
                                                                  1999     1998       1999      1998
                                                               ------------------- -------------------
<S>                                                            <C>       <C>       <C>        <C>
REVENUES                                                       $ 14,801  $ 11,867  $ 28,308   $ 22,213

COST OF REVENUES                                                 5,283     4,510     10,547      8,223
                                                               --------- --------- ---------- --------

GROSS MARGIN                                                     9,518     7,357     17,761     13,990
                                                               --------- --------- ---------- --------
OPERATING EXPENSES:
Research and development                                         1,780     1,488      3,369      2,871
Write-off of acquired in-process research
  & development                                                  2,037         -      2,037          -
Selling, general and administrative                              4,225     3,183      8,091      6,492
                                                               --------- --------- ---------- --------

Total operating expenses                                         8,042     4,671     13,497      9,363
                                                               --------- --------- ---------- --------

INCOME FROM OPERATIONS                                           1,476     2,686      4,264      4,627
Other income, net                                                  347       401        768        759
                                                               --------- --------- ---------- --------

INCOME BEFORE INCOME TAXES                                       1,823     3,087      5,032      5,386
Income tax provision                                              (702)   (1,189)    (1,938)    (2,074)
                                                               --------- --------- ---------- --------

NET INCOME                                                     $ 1,121   $ 1,898   $  3,094   $  3,312
                                                               ========= ========= ========== ========

BASIC NET INCOME PER SHARE                                     $  0.12   $  0.20   $   0.32   $   0.35
                                                               ========= ========= ========== ========

DILUTED NET INCOME PER SHARE                                   $  0.11   $  0.20   $   0.31   $   0.34
                                                               ========= ========= ========== ========

SHARES USED IN COMPUTING BASIC NET INCOME PER SHARE              9,566     9,386      9,549      9,373
                                                               ========= ========= ========== ========

SHARES USED IN COMPUTING DILUTED NET INCOME PER SHARE           10,013     9,710      9,990      9,724
                                                               ========= ========= ========== ========
<FN>
                    The accompanying notes are an integral part of these statements.
</FN>
</TABLE>

                                                   4

<PAGE>

<TABLE>
                                   MOLECULAR DEVICES CORPORATION
                          CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                           (In thousands)
                                            (unaudited)
<CAPTION>

                                                                            Six Months Ended
                                                                                June 30,
                                                                          1999             1998
                                                                       ----------       ----------
<S>                                                                        <C>              <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income                                                                  3,094            3,312
Adjustments to reconcile net income to net
     cash (used in) provided by operating activities:
          Depreciation and amortization                                       410              379
          Write-off of acquired in-process research & development           2,037                -
          Amortization of deferred compensation                               216              119
          Amortization of goodwill and developed technology                    38                -
          (Increase) decrease in assets:
               Accounts receivable                                         (2,646)          (1,084)
               Inventories                                                 (1,788)            (203)
               Deferred tax asset                                            (567)             330
               Other current assets                                           (80)            (553)
          Increase (decrease) in liabilities:
               Accounts payable                                             1,354              285
               Accrued liabilities                                         (2,152)             372
               Deferred revenue                                                24              285
                                                                       ----------       ----------

Net cash (used in) provided by operating activities                           (60)           3,242
                                                                       ----------       ----------

CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures                                                         (363)            (370)
Acquisition of Skatron Instruments AS, net of cash acquired                (7,118)               -
Other assets                                                                  (82)              32
                                                                       ----------       ----------

Net cash used in investing activities                                      (7,563)            (338)
                                                                       ----------       ----------

CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of short term debt                                                  (226)               -
Issuance of common stock, net                                                 493              228
                                                                       ----------       ----------

Net cash provided by financing activities                                     267              228
                                                                       ----------       ----------

EFFECT OF EXCHANGE RATE CHANGES ON CASH                                      (297)            (119)

Net (decrease) increase in cash and cash equivalents                       (7,653)           3,013
Cash and cash equivalents at beginning of period                           32,689           26,773
                                                                       ----------       ----------

Cash and cash equivalents at end of period                                 25,036           29,786
                                                                       ==========       ==========
<FN>
                 The accompanying notes are an integral part of these statements.
</FN>
</TABLE>

                                                 5

<PAGE>

                          MOLECULAR DEVICES CORPORATION
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Unaudited)


Note 1. Basis of Presentation

The accompanying  unaudited condensed consolidated financial statements included
herein have been prepared by the Company,  without audit,  pursuant to the rules
and regulations of the Securities and Exchange  Commission.  Certain information
and footnote  disclosures  normally included in financial statements prepared in
accordance with generally accepted accounting  principles have been condensed or
omitted  pursuant to such rules and  regulations,  although the Company believes
the disclosures  which are made are adequate to make the  information  presented
not misleading. These condensed consolidated financial statements should be read
in conjunction with the consolidated  financial statements and the notes thereto
included in the  Company's  Annual Report on Form 10-K for the fiscal year ended
December 31, 1998, as filed with the Securities and Exchange Commission on March
26, 1999.

The  unaudited  condensed  consolidated  financial  statements  included  herein
reflect all adjustments (which include only normal, recurring adjustments) which
are, in the opinion of management, necessary to state fairly the results for the
periods  presented.  The results for the three and six month  periods ended June
30, 1999 are not  necessarily  indicative  of the results to be expected for the
entire fiscal year ending December 31, 1999.

Note 2.  New Accounting Standard

In June 1998, the Financial  Accounting  Standards Board (FASB) issued Statement
of Accounting Standards (SFAS) No. 133,  "Accounting for Derivative  Instruments
and  Hedging  Activities".  We are  required  to adopt SFAS No. 133 for the year
ending  December 31, 2001.  SFAS No. 133  establishes  methods of accounting for
derivative  financial  instruments  and  hedging  activities  related  to  those
instruments  as well as other hedging  activities.  Because we currently hold no
derivative  financial  instruments  and  do  not  currently  engage  in  hedging
activities,  adoption of SFAS No. 133 is expected to have no material  impact on
our financial condition or results of operations.

Note 3.  Comprehensive Income

Statement of Financial Accounting Standards No. 130 requires unrealized gains or
losses on the Company's  foreign  currency  translation  adjustments,  which are
reported   separately  in  stockholders'   equity,   to  be  included  in  other
comprehensive  income.  Comprehensive  income was approximately $1.0 million and
$1.9  million  for the  three  month  periods  ended  June 30,  1999  and  1998,
respectively.

Comprehensive income was approximately $2.9 million and $3.2 million for the six
month periods ended June 30, 1999 and 1998, respectively.

                                       6

<PAGE>

Note 4. Inventories

Inventories consist of (in thousands):

                                      June 30, 1999            December 31, 1998
                                      -------------            -----------------
                                      (unaudited)

Finished goods                        $        3,119              $       1,660
Work in process                                  879                        602
Raw materials and subassemblies                2,358                      1,793
                                      --------------              -------------
                                      $        6,356              $       4,055
                                      ==============              =============

Note 5. Acquisition of Skatron Instruments, AS

On May 17, 1999, the Company  acquired all of the  outstanding  stock of Skatron
Instruments AS, a Norwegian company  ("Skatron") and certain assets from Skatron
Instruments Inc., a Virginia corporation and wholly-owned subsidiary of Skatron,
for a cash payment at closing of $7,118,000  (including  $300,000 of acquisition
related expenses). The acquisition was accounted for as a purchase and the total
purchase price was allocated based on an independent appraisal as follows:

          Acquired developed technology and goodwill              $4,717,000
          Acquired in-process research and development             2,037,000
          Net book value of acquired assets and liabilities          364,000
                                                                  ----------

                  Total purchase price                            $7,118,000
                                                                  ==========

The purchase  price  allocation  resulted in a $2,037,000  charge related to the
value of acquired  in-process  research and development in the second quarter of
1999. The value of acquired in-process  research and development  represents the
appraised value of technology in the development  stage that had not yet reached
economic and  technological  feasibility.  In reaching this  determination,  the
Company  considered,  among  other  factors,  the stage of  development  of each
product,  the time and resources  needed to complete each product,  and expected
income and  associated  risks.  The developed  technology and goodwill are being
amortized  over  periods of up to 15 years,  the  estimated  useful lives of the
acquired assets. The results of Skatron are consolidated from May 18, 1999.

Pro forma  consolidated  results for the Company as if the  acquisition had been
consummated  January 1, 1999,  excluding  the  charge  for  acquired  in-process
research and development, are as follows (in thousands except per share amount):

          Revenue                                                 $29,358
          Net Income                                               $4,341
          Diluted Net Income per Share                              $0.43

The pro forma  information does not purport to be indicative of the results that
actually would have occurred had the  acquisition  been  consummated  January 1,
1999,  or of  results  which may occur in the  future.  In  accordance  with SEC
Regulation 5-X, Rule 11-02(b)(5),  nonrecurring  charges, such as the charge for
acquired in-process technology resulting from the acquisition, are not reflected
in the pro forma financial summary.


                                       7

<PAGE>

Note 6. Net Income Per Share
<TABLE>
Basic net income per share is  computed  using the  weighted  average  number of
shares of common stock  outstanding and diluted net income per share is computed
using the  weighted  average  number of shares of common stock  outstanding  and
dilutive  common  equivalent  shares from  outstanding  stock options (using the
treasury  stock  method).  Computation  of earnings  per share is as follows (in
thousands except per share amounts):
<CAPTION>
                                                               Three Months Ended      Six Months Ended
                                                                     June 30,              June 30,
                                                                  1999    1998           1999    1998
                                                               -----------------       ----------------
<S>                                                            <C>      <C>            <C>      <C>
Net Income                                                     $ 1,121  $ 1,898        $ 3,094  $ 3,312
Denominator for basic EPS - weighted average common
shares outstanding                                               9,566    9,386          9,549    9,373

Effect of dilutive securities - employee stock options             447      324            441      351
                                                               -------  -------        -------  -------

Denominator for diluted EPS - weighted average common
shares outstanding plus dilutive securities                     10,013    9,710          9,990    9,724
                                                               -------  -------        -------  -------

BASIC NET INCOME PER SHARE                                     $  0.12  $  0.20        $  0.32  $  0.35
                                                               =======  =======        =======  =======

DILUTED NET INCOME PER SHARE                                   $  0.11  $  0.20        $  0.31  $  0.34
                                                               =======  =======        =======  =======
</TABLE>

                                       8

<PAGE>


                          MOLECULAR DEVICES CORPORATION

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS

Except for the historical information contained herein, the following discussion
contains  forward-looking  statements that involve risks and uncertainties.  The
words "expect,"  "believe,"  "intends," and words of similar import are intended
to identify those statements as forward-looking statements. The Company's actual
results could differ  materially from those  discussed here.  Factors that could
cause or contribute to such differences  include,  but are not limited to, those
discussed in this section,  as well as those  identified in the Company's Annual
Report on Form  10-K for the year  ended  December  31,  1998 as filed  with the
Securities and Exchange Commission on March 26, 1999.

The  following  discussion  should  be read in  conjunction  with the  unaudited
condensed consolidated financial statements and notes thereto included in Part I
- - Item 1 of  this  Quarterly  Report  and  the  audited  consolidated  financial
statements  and notes  thereto  and  Management's  Discussion  and  Analysis  of
Financial  Condition and Results of Operations  for the year ended  December 31,
1998  contained in the  Company's  Annual Report on Form 10-K for the year ended
December 31, 1998 as filed with the Securities and Exchange  Commission on March
26, 1999.  The results for the three and six month  periods  ended June 30, 1999
are not  necessarily  indicative  of the results to be  expected  for the entire
fiscal year ending December 31, 1999.

Results of Operations - Three and six months ended June 30, 1999 and 1998

REVENUES. Revenues for the second quarter of 1999 increased 25% to approximately
$14.8 million from  approximately  $11.9 million in the second  quarter of 1998.
Maxline and Cell Analysis product families generated increased levels of revenue
which was partially  offset by decreased  Threshold  revenues.  Maxline revenues
increased  primarily  due to  greater  sales of new  SPECTRAmax  products,  most
noteably the Gemini,  which addresses the fluorescence plate reader market. Cell
Analysis  revenues  increased due to the  introduction  of new FLIPR products in
late 1998. Threshold revenues declined primarily as a result of decreased demand
from military customers worldwide.

Revenues for the first six months of 1999 increased 27% to  approximately  $28.3
million from approximately $22.2 million in the same period of 1998. Maxline and
Cell  Analysis  product  families  generated  increased  levels  of  revenue  as
partially  offset by decreased  Threshold  product family  revenues based on the
same trends discussed above.

GROSS MARGIN.  Gross margin  increased to 64.3% in the second quarter of 1999 as
compared  to  62.0%  in  the  second  quarter  of  1998.  This  improved  margin
performance  was  primarily due to increased  sales of higher margin  SPECTRAmax
products. The Gemini was a key driver for this improved performance.

Gross margin for the first six months of 1999  decreased  slightly to 62.7% from
63.0% in the same period last year.  This decline was directly  attributable  to
the first  quarter  1999  margin of 61% which was lower due to a high  volume of
lower margin FLIPR product shipments (384 upgrades).

RESEARCH  AND  DEVELOPMENT.  Research  and  development  expenses for the second
quarter of 1999 increased by 20% to  approximately  $1.8 million (12.0% of total
revenues)  from  approximately  $1.5 million  (12.5% of total  revenues) for the
second  quarter of 1998.  Research  and  development  expenses for the first six
months of 1999  increased by 17% to  approximately  $3.4 million (11.9% of total
revenues) from approximately $2.9 million (12.9% of total revenues) for the same
period of 1998.


                                       9

<PAGE>

The  increased  spending for both periods is primarily  the result of additional
personnel  and increased  spending on  development  activities  both required to
support on-going development of new products.

WRITE-OFF OF ACQUIRED IN-PROCESS RESEARCH & DEVELOPMENT.  The Company recorded a
charge of $2,037,000  during the second  quarter of 1999 due to the write-off of
acquired   in-process   research  and  development   related  to  the  Company's
acquisition  of  Skatron  on May 17,  1999.  See Note 5 of "Notes  to  Condensed
Consolidated Financial Statements," included in Part I - Item 1.

SELLING,  GENERAL  AND  ADMINISTRATIVE.   Selling,  general  and  administrative
expenses for the second quarter of 1999 increased by 33% to  approximately  $4.2
million  (28.5% of total  revenues)  from  approximately  $3.2 million (26.8% of
total  revenues)  for  the  second  quarter  of  1998.   Selling,   general  and
administrative  expenses  for the first six months of 1999  increased  by 25% to
approximately  $8.1 million (28.6% of total  revenues) from  approximately  $6.5
million  (29.2% of total  revenues) for the same period of 1998.  This increased
spending for both periods is primarily the result of additional  expenditures on
marketing, sales and service related activities, including additional personnel,
as the Company  continued its efforts to expand  worldwide  market  coverage and
improve customer service.

OTHER INCOME (NET). Net other income for the second quarter of 1999 decreased by
13% to approximately  $347,000 from approximately $401,000 in the second quarter
of 1998 due to a decreased  average  cash  balance,  and  correspondingly  lower
interest earnings, period to period as a result of the Skatron acquisition.  Net
other income for the first six months of  1999  increased  nominally to $768,000
from  $759,000 in the same period last year.  Average  cash  balances  for these
periods  were  essentially  equal  due  to the  use  of  cash  for  the  Skatron
acquisition in the middle of the second quarter of 1999.

INCOME TAX  PROVISION.  Income tax  provisions of $702,000 and $1.9 million were
recorded in the second  quarter and first six months of 1998,  respectively,  as
compared to $1.2 million and $2.1 million in the same periods of the prior year.
The effective tax rate for all periods was 38.5%.  The lower overall  provisions
in 1999 as compared  to 1998 are due to the  write-off  of  acquired  in-process
research and development discussed above.

Liquidity and Capital Resources

The Company had cash and cash equivalents of approximately $25.0 million at June
30, 1999,  compared to $32.7 million at December 31, 1999.  During the first six
months  of 1999,  the  Company  used  approximately  $60,000  and $7.6  million,
respectively,  for  operating and  investing  activities as partially  offset by
$267,000 of cash  provided by financing  activities.  The cash used in operating
activities relates primarily to short-term  working capital needs,  particularly
accounts receivable and inventory and payment of current  liabilities.  The cash
used in investing  activities relates primarily to the Skatron  acquisition and,
to a lesser extent,  capital spending. The cash provided by financing activities
related to stock  option  exercises as offset by debt  repayments  required as a
result of the Skatron acquisition.

The Company believes that its existing capital resources and cash expected to be
generated from future  operations  will be sufficient to fund its operations and
anticipated  capital  expenditures  for the  foreseeable  future.  However,  the
Company's  future liquidity and capital  requirements  will depend upon numerous
factors,   including   the  resources   the  Company   devotes  to   developing,
manufacturing  and  marketing  its  products,  the extent to which the Company's
products   generate  market   acceptance  and  demand,   potential   acquisition
opportunities  that may  arise  and  other  factors.  As such,  there  can be no
assurances that the Company will not require additional  financing in the future
and,  therefore,  the Company may in the future seek to raise  additional  funds
through bank  facilities,  debt or equity offerings or other sources of capital.
Additional  funding may not be available  when needed or on terms


                                       10

<PAGE>

acceptable  to the Company,  which could have a material  adverse  effect on the
Company's business, financial condition and results of operations.

Factors That May Affect Future Results

The  Company's  business,  financial  condition  and results of  operations  are
subject to various risk factors,  including  those described below and elsewhere
in this report.

o    Uncertainty of Future  Operating  Results.  Future  operating  results will
     depend on many factors,  including demand for the Company's  products,  the
     levels and timing of government and private sector funding of life sciences
     research activities,  the timing of the introduction of new products by the
     Company or by competing companies, the integration of acquired products and
     technology into  manufacturing  and distribution  processes,  the Company's
     ability to control  costs and its  ability  to  attract  and retain  highly
     qualified  personnel.  Furthermore,  the  Company's  gross  margins  can be
     significantly  affected by many factors,  including  shifts in product mix,
     the mix of  direct  sales as  compared  with  sales  through  distributors,
     competitive  price  pressures  and quarterly  fluctuations  in sales levels
     relative to fixed costs.

o    Fluctuations in Quarterly Operating Results;  Lack of Backlog.  The Company
     manufactures  its products to forecast  rather than to outstanding  orders,
     and products are typically  shipped  within 30 to 90 days of purchase order
     receipt. As a result, the Company does not believe the amount of backlog at
     any  particular  date is  indicative  of its  future  level of  sales.  The
     Company's  manufacturing  procedures may in certain instances create a risk
     of excess or inadequate  inventory levels if orders do not match forecasts.
     The Company's  expense levels are based, in part, on expected future sales.
     However, the timing of capital equipment purchases by customers is expected
     to be uneven and  difficult  to predict.  If sales  levels in a  particular
     quarter do not meet  expectations,  the  Company  may not be able to adjust
     operating  expenses  sufficiently  quickly to compensate for the shortfall,
     and the Company's  results of operations for that quarter may be materially
     adversely  affected.  Many of the  Company's  products  are subject to long
     customer procurement  processes.  In addition, a significant portion of the
     Company's  revenues are  typically  derived from sales of a small number of
     relatively  high-priced systems, and sales of such products may increase as
     a  percentage  of revenue in the future.  Delays in receipt of  anticipated
     orders of such products could lead to substantial  variability from quarter
     to quarter.  Furthermore,  the Company has historically  received  purchase
     orders and made a significant  portion of each quarter's  product shipments
     near the end of the quarter.  If that pattern continues,  even short delays
     in the  receipt of orders or  shipment  of products at the end of a quarter
     could have a material  adverse  effect on  results of  operations  for that
     quarter. The Company typically experiences a decrease in the level of sales
     in the first  calendar  quarter as  compared  to the fourth  quarter of the
     preceding  year  because of  budgetary  and  capital  equipment  purchasing
     patterns  in  the  life  sciences  industry.  The  Company  also  typically
     experiences  a decrease in revenues  in the third  quarter  compared to the
     second  quarter,  related to seasonality  primarily  associated  with lower
     European and  academic  sales  during the summer  months.  Revenues for the
     third quarter of 1998 nominally  exceeded  second quarter 1998 revenues due
     to the  phasing in of new  products.  The Company  believes  that the third
     quarter  seasonality trend may recur in the future as the Company increases
     efforts to further  penetrate  European  Markets.  Operating results in any
     period  should not be  considered  indicative of the results to be expected
     for any future period.

o    Dependency on New Products;  Rapid Technological  Change. The life sciences
     instrumentation  market is characterized by rapid technological  change and
     frequent  new product  introductions.  The  Company's  future  success will
     depend on its ability to enhance its  current  products  and to develop and
     introduce,  on a timely basis, new products that address the evolving needs
     of its customers.


                                       11

<PAGE>

o    Reliance on Sole Source Suppliers. Certain components used in the Company's
     products are  currently  purchased  from single  sources.  Any delay in the
     manufacture  of such  components  could  materially  adversely  affect  the
     Company's business, financial condition and results of operations.

o    Year 2000  Compliance.  The  Company  has a Year 2000  project  in place to
     address  the  potential  exposures  related to the  impact on its  computer
     systems and  scientific and  manufacturing  equipment  containing  computer
     related  components for the Year 2000 and beyond.  The Company is currently
     assessing  its  internal  and  external  Year 2000 risks and  continues  to
     monitor,  validate and implement the  identified  corrective  actions.  The
     Company's  internal business systems have been reviewed and plans are being
     defined to achieve Year 2000 compliance.  Testing of the Company's business
     critical  application  programs  began in the fourth quarter of 1998 and is
     scheduled to be complete by the third  quarter of 1999.  Any failure on the
     part of the Company to identify  and correct  Year 2000  compliance  issues
     related  to  the  Company's  internal  business  systems  could  materially
     adversely affect the Company's business, financial condition and results of
     operation.

     All of the Company's products that are currently manufactured and supported
     are Year 2000 compliant.  There is an installed base of Company products no
     longer  distributed that are not Year 2000 compliant,  all of which have an
     identified  upgrade  path  which our  customers  can  purchase  to  achieve
     compliance.

     In addition to risks  associated  with the Company's own computer  systems,
     equipment  and  products,  the Company has  relationships  with,  and is to
     varying  degrees  dependent  upon,  a large  number of third  parties  that
     provide  information,  goods and  services to the  Company.  These  include
     financial   institutions,   suppliers,   vendors,   governmental  entities,
     distributors and customers.  If significant  numbers of these third parties
     experience failures in their computer systems or equipment due to Year 2000
     non-compliance,   it  could  affect  the   company's   ability  to  process
     transactions,  manufacture  products,  or engage in similar normal business
     activities.  While  many of these  risks are  outside  the  control  of the
     Company,  the Company has instituted  programs,  including internal records
     review and use of external  questionnaires,  to identify key third parties,
     assess their level of Year 2000  compliance and address any  non-compliance
     issues.

     At this time, the Company  believes  there are no  significant  incremental
     costs   anticipated  to  achieve  both  internal  and  external  Year  2000
     compliance.  The  total  cost of the  Year  2000  systems  assessments  and
     conversions is being funded through operating cash flows and the Company is
     expensing  these  costs  as they are  incurred.  However,  there  can be no
     assurances  that the third parties of the Company will be in compliance and
     the Company  has no control  over  whether  such third  parties  will be in
     compliance  with Year 2000  requirements.  Any  failure  on the part of the
     Company's  third  parties,  which  could  include  inability  to deliver or
     purchase product, could materially adversely affect the Company's business,
     financial condition and results of operations.

Other Factors.  The Company's business is affected by other factors,  including:
(i) the possibility  that the introduction or announcement of new products would
render existing  products  obsolete or result in a delay or decrease in purchase
orders for existing  products;  (ii) the extent to which and the timing in which
the Company's  products  achieve market  acceptance;  (iii) the capital spending
policies of the Company's customers (which depend on various factors,  including
the resources available to such customers, the spending priorities among various
types of research  equipment  and the policies  regarding  capital  expenditures
during  recessionary   periods),   including  those  policies  of  universities,
government  research  laboratories  and  other  institutions  whose  funding  is
dependent  on grants from  government  agencies;  (iv)  competition  in the life
sciences  instrumentation market which is highly competitive and expected by the
Company to increase; (v) the Company's ability to obtain and maintain patent and
other  intellectual  property  protection for its products and technology;  (vi)
compliance with  governmental


                                       12

<PAGE>

regulations,  including  those  promulgated  by the  United  Sates Food and Drug
Administration  and similar state and foreign agencies;  and (vii) the extent of
the Company's sales outside the United States,  which involve  certain  specific
risks,  including  risks  related  to  currency   fluctuations,   imposition  of
government  controls,  export license  requirements,  restrictions  on export of
critical  technology,  political and economic  instability  or conflicts,  trade
restrictions,  changes in tariffs and taxes and  difficulties  in  staffing  and
managing international operations and international distributor relationships.


ITEM 3.  Quantitative and Qualitative Disclosures About Market Risk

The Company is exposed to market risk,  including  changes in interest rates and
foreign  currency  exchange  rates.  The  primary  objective  of  the  Company's
investment activities is to preserve principal while at the same time maximizing
the income we receive  from our  investments  without  significantly  increasing
risk.  A  discussion  of  the  Company's   accounting   policies  for  financial
instruments  and further  disclosures  relating  to  financial  institutions  is
included in the Summary of Significant  Accounting Policies note in the Notes to
Consolidated  Financial  Statements  included in the Company's  Annual Report on
Form 10-K for the fiscal year ended  December 31, 1998.  The Company's  interest
income is sensitive to changes in the general level of interest rates, primarily
U.S.  interest rates. In this regard,  changes in U.S. interest rates affect the
interest  earned on the  Company's  cash  equivalents.  The Company  invests its
excess cash  primarily  in demand  deposits  with United  States banks and money
market  accounts and  short-term  securities.  These  securities,  consisting of
commercial paper and U.S.  government agency  securities,  are carried at market
value (which  approximate  cost),  typically mature or are redeemable  within 90
days, and bear minimal risk. The Company is exposed to changes in exchange rates
in Europe  (primarily  the United  Kingdom and Germany)  and Canada.  All export
sales, with the exception of sales into Canada,  are denominated in U.S. dollars
and bear no exchange rate risk. Gains and losses resulting from foreign currency
transactions in Canada have been immaterial.


                                       13

<PAGE>

                          MOLECULAR DEVICES CORPORATION

                           PART II. OTHER INFORMATION


ITEM 1.  LEGAL PROCEEDINGS


The Company is not currently a party to any material legal proceedings.


ITEM 2.  CHANGES IN SECURITIES AND USE OF PROCEEDS


The Company  entered into  employment  arrangements  with each of Dr.  Joseph D.
Keegan,  Mr.  Timothy A. Harkness and Mr. John S. Senaldi  pursuant to which the
Company is obligated to issue to each such officer shares of its Common Stock in
exchange for services rendered.  As a result of these arrangements,  the Company
issued  shares of its Common  Stock to these  officers  on the dates and amounts
indicated  below in  reliance on the  exemption  from  registration  afforded by
Section 4(2) of the Securities Act of 1933, as amended.

                                              Number of Shares     Date of Issue

         Dr. Keegan                                3,750              06/30/99
         Mr. Harkness                              1,250              04/09/99
         Mr. Senaldi                                 312              05/06/99


ITEM 3.  DEFAULTS UPON SENIOR SECURITIES

None.


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

Matters presented at the Annual Meeting of Stockholders on May 20, 1999, and the
voting of stockholders was as follows:

              (a)  Election of directors for the ensuing year:

                                            For               Authority Withheld
                                            ---               ------------------

              Joseph D. Keegan, Ph.D.       8,178,458         136,870
              Moshe H. Alafi                8,177,758         137,570
              David L. Anderson             8,177,758         137,570
              A. Blaine Bowman              8,178,758         136,570
              Paul Goddard, Ph.D.           8,178,758         136,570
              Andre F. Marion               8,177,337         137,991
              Harden M. McConnell, Ph.D.    8,177,437         137,891
              J. Allan Waitz, Ph.D.         8,177,058         138,270


                                       14

<PAGE>

              (b) Approve amendments to the Company's 1995 Stock Option Plan:

              For                        Against                        Abstain
              ---                        -------                        -------

              3,659,307                  2,757,720                      442,602

              (c)  Approve   amendments  to  the  Company's  1995   Non-Employee
                   Director's Stock Option Plan:

              For                        Against                        Abstain
              ---                        -------                        -------

              4,238,840                  2,607,970                      12,819

              (d)  Ratification  of the  appointment  of Ernst &  Young,  LLP as
                   independent auditors for fiscal 1999:

              For                        Against                        Abstain
              ---                        -------                        -------

              8,307,303                  2,300                          5,725


ITEM 5.       OTHER INFORMATION

None.


ITEM 6.       EXHIBITS AND REPORTS ON FORM 8-K

              (a)        Exhibits

              2.1(1)     Stock and Asset Purchase Agreement, dated as of May 17,
                         1999, among Molecular Devices  Corporation,  a Delaware
                         corporation,  Helge Skare,  Wiel Skare,  Steinar Faanes
                         and Sten Skare, each an individual  resident in Norway,
                         Skatron  Instruments  AS,  a  Norwegian  company,   and
                         Skatron Instruments,  Inc., a Virginia corporation (the
                         Disclosure  Schedule  has  been  omitted  as  permitted
                         pursuant to the rules and regulations of the Securities
                         and Exchange Commission ("SEC"),  but will be furnished
                         supplementally to the SEC upon request).

              2.2(1)     Escrow  Agreement,  dated  as of May  17,  1999,  among
                         Molecular Devices Corporation,  a Delaware corporation,
                         Helge Skare,  Wiel Skare and Greater Bay Trust Company,
                         as Escrow Agent.

              10.5       1995  Non-Employee  Directors'  Stock Option  Plan,  as
                         amended.

              10.7       1995 Stock Option Plan, as amended.

              27.1       Financial Data Schedule.
              ------------------
              (1)        Incorporated  by reference to the  similarly  described
                         exhibit  in the  Company's  Current  Report on Form 8-K
                         filed May 26, 1999.


                                       15

<PAGE>


              (b)        Reports on Form 8-K

                         A report on Form 8-K  dated  May 18,  1999 was filed on
May 26, 1999.


SIGNATURE

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.



                  MOLECULAR DEVICES CORPORATION


                  By:    /s/ Timothy A. Harkness
                         -------------------------------------------------------
                         Vice President, Finance and Chief Financial Officer
                         (Duly Authorized and Principal Financial and Accounting
                         Officer)

                  Date:  August 10, 1999


                                       16



                                                                     Appendix B

                          MOLECULAR DEVICES CORPORATION
            1995 NON-EMPLOYEE DIRECTORS' STOCK OPTION PLAN ADOPTED ON
                               SEPTEMBER 13, 1995
                            APPROVED BY SHAREHOLDERS
                              ON DECEMBER 12, 1995
                    AMENDED BY THE BOARD ON JANUARY 29, 1999
                 AS AMENDED BY THE STOCKHOLDERS ON MAY 20, 1999


1.       PURPOSE.

         (a) The purpose of the 1995  Non-Employee  Directors' Stock Option Plan
(the "Plan") is to provide a means by which each  director of MOLECULAR  DEVICES
CORPORATION  (the  "Company") who is not otherwise an employee of the Company or
of any Affiliate of the Company (each such person being hereafter referred to as
a "Non-Employee Director") will be given an opportunity to purchase stock of the
Company.

         (b)  The  word  "Affiliate"  as  used  in the  Plan  means  any  parent
corporation or subsidiary  corporation of the Company as those terms are defined
in Sections 424(e) and (f), respectively,  of the Internal Revenue Code of 1986,
as amended from time to time (the "Code").

         (c) The Company,  by means of the Plan, seeks to retain the services of
persons now serving as  Non-Employee  Directors  of the  Company,  to secure and
retain the  services  of persons  capable  of serving in such  capacity,  and to
provide  incentives for such persons to exert maximum efforts for the success of
the Company.

2.       ADMINISTRATION.

         (a) The Plan shall be  administered  by the Board of  Directors  of the
Company (the "Board") unless and until the Board delegates  administration  to a
committee, as provided in subparagraph 2(b).

         (b) The Board may  delegate  administration  of the Plan to a committee
composed  of not fewer than two (2) members of the Board (the  "Committee").  If
administration  is  delegated  to a  Committee,  the  Committee  shall have,  in
connection with the administration of the Plan, the powers theretofore possessed
by the Board, subject,  however, to such resolutions,  not inconsistent with the
provisions of the Plan, as may be adopted from time to time by the Board. If the
Committee is delegated  authority to amend or fix the timing or terms of options
granted under the Plan,  then the composition of the Committee shall comply with
the  requirements for exemption of option grants from the application of Section
16 of the Securities Exchange Act of 1934, or the terms of such options shall be
such as to qualify  such options for such  exemption.  The Board may abolish the
Committee at any time and revest in the Board the administration of the Plan.

                                       1
<PAGE>

3.       SHARES SUBJECT TO THE PLAN.

         (a) Subject to the  provisions of paragraph 10 relating to  adjustments
upon changes in stock,  the stock that may be sold  pursuant to options  granted
under the Plan  shall not  exceed in the  aggregate  three  hundred  forty-seven
thousand five hundred  (347,500)  shares of the Company's  common stock.  If any
option granted under the Plan shall for any reason expire or otherwise terminate
without having been exercised in full, the stock not purchased under such option
shall again become available for the Plan.

         (b) The stock subject to the Plan may be unissued  shares or reacquired
shares, bought on the market or otherwise.

4.       ELIGIBILITY.

         (a) Options  shall be granted  only to  Non-Employee  Directors  of the
Company.

5.       NON-DISCRETIONARY GRANTS.

         (a) Upon the date of the initial approval of the Plan by the Board (the
"Adoption Date"), each person who is then a Non-Employee Director  automatically
shall be granted an option to purchase  sixteen  thousand five hundred  (16,500)
shares of common  stock of the  Company  on the terms and  conditions  set forth
herein.

         (b) Each person who is, after the Adoption Date,  elected for the first
time to be a Non-Employee  Director  automatically  shall,  upon the date of his
initial  election to be a Non-Employee  Director by the Board or shareholders of
the Company,  be granted an option to purchase ten thousand  (10,000)  shares of
common stock of the Company on the terms and conditions set forth herein.

         (c) Following  the Adoption  Date,  each  Non-Employee  Director  shall
automatically be granted an additional  Option to purchase four thousand (4,000)
shares of common  stock of the  Company  on the terms and  conditions  set forth
herein immediately following each annual meeting of stockholders.

         (d) Notwithstanding  anything to the contrary set forth in this Section
5, each Non-Employee Director who received a stock option grant pursuant to this
Plan in  September  1998 (a  "September  1998  Grant")  shall not be entitled to
future  grants under this Plan until the  September  1998 Grant shall have fully
vested. On the date that the September 1998 Grant shall have fully vested,  such
Non-Employee  Director shall be treated as having been initially elected to be a
Non-Employee  Director on such date and receive the stock option  referenced  in
Section  5(b) and,  thereafter,  shall be eligible to receive the stock  options
referenced in Section 5(c).

6.       OPTION PROVISIONS.

         Each option shall be subject to the following terms and conditions:

         (a) The term of each option  commences  on the date it is granted  and,
unless sooner  terminated as set forth herein,  expires on the date ("Expiration
Date")  ten (10) years from the

                                       2
<PAGE>

date of grant. If the optionee's service as a Non-Employee  Director or employee
of or consultant to the Company or any  Affiliate  terminates  for any reason or
for no reason,  the option shall terminate on the earlier of the Expiration Date
or the date  three (3)  months  following  the date of  termination  of all such
service;  provided,  however,  that if such termination of service is due to the
optionee's  death,  the option shall  terminate on the earlier of the Expiration
Date or eighteen (18) months following the date of the optionee's  death. In any
and all circumstances,  an option may be exercised following  termination of the
optionee's  service as a  Non-Employee  Director or employee of or consultant to
the Company or any Affiliate only as to that number of shares as to which it was
exercisable  on the date of termination of such all service under the provisions
of subparagraph 6(e).

         (b) Subject to  subparagraph  4(b),  the exercise  price of each option
shall be one  hundred  percent  (100%)  of the fair  market  value of the  stock
subject to such option on the date such option is granted.

         (c) Payment of the exercise price of each option is due in full in cash
upon any exercise when the number of shares being  purchased  upon such exercise
is less than 1,000 shares; but when the number of shares being purchased upon an
exercise is 1,000 or more shares,  the optionee may elect to make payment of the
exercise price under one of the following alternatives:

             (i) Payment of the exercise price per share in cash at the time of

exercise; or

             (ii) Provided that at the time of the exercise the Company's common
stock is  publicly  traded  and quoted  regularly  in the Wall  Street  Journal,
payment by delivery of shares of common  stock of the Company  already  owned by
the  optionee,  held for the period  required to avoid a charge to the Company's
reported earnings,  and owned free and clear of any liens, claims,  encumbrances
or  security  interest,  which  common  stock shall be valued at its fair market
value on the date preceding the date of exercise; or

             (iii) Payment by a combination of the methods of payment  specified
in subparagraph 6(c)(i) and 6(c)(ii) above.

         Notwithstanding the foregoing, this option may be exercised pursuant to
a program  developed  under  Regulation T as promulgated by the Federal  Reserve
Board which  results in the  receipt of cash (or check) by the Company  prior to
the issuance of shares of the Company's common stock.

         (d) An option shall not be  transferable  except by will or by the laws
of  descent  and  distribution,  or  pursuant  to  a  domestic  relations  order
satisfying the requirements of Rule 16a-12 under the Securities  Exchange Act of
1934 (a "DRO") and shall be  exercisable  during the  lifetime  of the person to
whom the option is granted  only by such  person  (or by his  guardian  or legal
representative) or transferee pursuant to a DRO.  Notwithstanding the foregoing,
the  optionee  may,  by  delivering  written  notice  to the  Company  in a form
satisfactory  to the  Company,  designate a third party who, in the event of the
death of the optionee, shall thereafter be entitled to exercise the option.

                                       3
<PAGE>

         (e) The option shall become  exercisable in installments  over a period
of four years from the date of grant in equal annual installments  commencing on
the date one year  after  the  date of grant of the  option,  provided  that the
optionee has, during the entire period prior to such vesting date,  continuously
served as a Non-Employee Director or employee of or consultant to the Company or
any  Affiliate  of  the  Company,  whereupon  such  option  shall  become  fully
exercisable  in  accordance  with its terms with  respect to that portion of the
shares  represented  by that  installment.  For  purposes of vesting  under this
subparagraph  6(e),  attendance  at no less than  two-thirds  (2/3) of the Board
meetings  occurring  during an  installment  period is  required in order for an
optionee  serving  as a  Non-Employee  Director  to vest for  such  installment;
failure to satisfy this  requirement  during any particular  installment  period
shall result in an abatement of the vesting of the option during the  applicable
installment  period and the  aggregate  vesting  period of such option  shall be
increased by one additional year.

         (f) The  Company may  require  any  optionee,  or any person to whom an
option is transferred under  subparagraph 6(d), as a condition of exercising any
such option:  (i) to give written  assurances  satisfactory to the Company as to
the optionee's  knowledge and experience in financial and business matters;  and
(ii) to give written  assurances  satisfactory  to the Company stating that such
person is  acquiring  the stock  subject  to the option  for such  person's  own
account and not with any present intention of selling or otherwise  distributing
the  stock.  These  requirements,  and any  assurances  given  pursuant  to such
requirements,  shall be  inoperative  if (i) the issuance of the shares upon the
exercise  of the option  has been  registered  under a  then-currently-effective
registration  statement  under  the  Securities  Act of 1933,  as  amended  (the
"Securities Act"), or (ii), as to any particular requirement, a determination is
made by counsel for the  Company  that such  requirement  need not be met in the
circumstances under the then-applicable securities laws.

         (g)  Notwithstanding  anything to the  contrary  contained  herein,  an
option may not be exercised  unless the shares  issuable  upon  exercise of such
option are then  registered  under the Securities Act or, if such shares are not
then so registered,  the Company has determined  that such exercise and issuance
would be exempt from the registration requirements of the Securities Act.

7.       COVENANTS OF THE COMPANY.

         (a) During the terms of the options granted under the Plan, the Company
shall  keep  available  at all times the number of shares of stock  required  to
satisfy such options.

         (b) The Company shall seek to obtain from each regulatory commission or
agency having  jurisdiction  over the Plan such  authority as may be required to
issue and sell shares of stock upon  exercise of the options  granted  under the
Plan; provided,  however, that this undertaking shall not require the Company to
register  under the Securities Act either the Plan, any option granted under the
Plan,  or any stock issued or issuable  pursuant to any such  option.  If, after
reasonable  efforts,  the Company is unable to obtain  from any such  regulatory
commission or agency the authority which counsel for the Company deems necessary
for the lawful  issuance and sale of stock under the Plan,  the Company shall be
relieved from any liability for failure to issue and sell stock upon exercise of
such options.

                                       4
<PAGE>

8.       USE OF PROCEEDS FROM STOCK.

         Proceeds from the sale of stock  pursuant to options  granted under the
Plan shall constitute general funds of the Company.

9.       MISCELLANEOUS.

         (a) Neither an optionee nor any person to whom an option is transferred
under  subparagraph  6(d) shall be deemed to be the holder of, or to have any of
the rights of a holder with respect to, any shares subject to such option unless
and until such person has satisfied all  requirements for exercise of the option
pursuant to its terms.

         (b) Nothing in the Plan or in any instrument  executed pursuant thereto
shall confer upon any Non-Employee Director any right to continue in the service
of the Company or any  Affiliate or shall  affect any right of the Company,  its
Board  or  stockholders  or  any  Affiliate  to  terminate  the  service  of any
Non-Employee Director with or without cause.

         (c) No Non-Employee  Director,  individually or as a member of a group,
and no beneficiary or other person claiming under or through him, shall have any
right,  title or interest in or to any option  reserved  for the purposes of the
Plan  except as to such  shares  of common  stock,  if any,  as shall  have been
reserved for him pursuant to an option granted to him.

         (d) In connection  with each option made pursuant to the Plan, it shall
be a condition precedent to the Company's obligation to issue or transfer shares
to a Non-Employee  Director,  or to evidence the removal of any  restrictions on
transfer, that such Non-Employee Director make arrangements  satisfactory to the
Company  to insure  that the  amount of any  federal  or other  withholding  tax
required to be withheld  with respect to such sale or transfer,  or such removal
or lapse, is made available to the Company for timely payment of such tax.

             (i) If the common stock is listed on any established stock exchange
or a national market system,  including  without  limitation the National Market
System  of the  National  Association  of  Securities  Dealers,  Inc.  Automated
Quotation  ("Nasdaq")  System,  the Fair Market Value of a share of common stock
shall be the closing sales price for such stock (or the closing bid, if no sales
were  reported) as quoted on such system or exchange  (or the exchange  with the
greatest volume of trading in common stock) on the last market trading day prior
to the day of  determination,  as reporting  in the Wall Street  Journal or such
other source as the Board deems reliable;

             (ii) If the common stock is quoted on the Nasdaq System (but not on
the  National  Market  System  thereof) or is  regularly  quoted by a recognized
securities dealer but selling prices are not reported,  the Fair Market Value of
a share of common  stock shall be the mean  between the bid and asked prices for
the  common  stock  on  the  last  market  trading  day  prior  to  the  day  of
determination,  as reported in the Wall Street  Journal or such other  source as
the Board deems reliable;

             (iii) In the absence of an established market for the common stock,
the Fair Market Value shall be determined in good faith by the Board.

                                       5
<PAGE>

10.      ADJUSTMENTS UPON CHANGES IN STOCK.

         (a) If any change is made in the stock  subject to the Plan, or subject
to  any  option   granted  under  the  Plan  (through   merger,   consolidation,
reorganization,  recapitalization,  stock  dividend,  dividend in property other
than cash, stock split, liquidating dividend, combination of shares, exchange of
shares,  change in corporate  structure or otherwise),  the Plan and outstanding
options will be  appropriately  adjusted in the class(es) and maximum  number of
shares  subject to the Plan and the class(es) and number of shares and price per
share of stock subject to outstanding options.

         (b) In the event of: (1) a merger or consolidation in which the Company
is not the surviving  corporation;  (2) a reverse merger in which the Company is
the  surviving  corporation  but  the  shares  of  the  Company's  common  stock
outstanding  immediately  preceding  the merger are  converted  by virtue of the
merger  into  other  property,  whether  in the  form  of  securities,  cash  or
otherwise;  or (3) any other  capital  reorganization  in which  more than fifty
percent (50%) of the shares of the Company  entitled to vote are exchanged,  the
time during which options  outstanding  under the Plan may be exercised shall be
accelerated and the options terminated if not exercised prior to such event.

11.      AMENDMENT OF THE PLAN.

         (a) The Board at any time,  and from time to time,  may amend the Plan,
provided,  however,  that  except  as  provided  in  paragraph  10  relating  to
adjustments  upon  changes in stock,  no  amendment  shall be  effective  unless
approved by the  stockholders of the Company within twelve (12) months before or
after the adoption of the amendment, where the amendment will:

             (i)  Increase  the number of shares  which may be issued  under the
Plan;

             (ii) Modify the requirements as to eligibility for participation in
the Plan (to the extent such modification requires stockholder approval in order
for the Plan to comply with the requirements of Rule 16b-3); or

             (iii)  Modify  the  Plan  in any  other  way if  such  modification
requires  stockholder  approval  in  order  for the  Plan  to  comply  with  the
requirements  of Nasdaq or any securities  exchange on which the Company desires
prices for its common stock to be quoted.

         (b)  Rights  and  obligations  under  any  option  granted  before  any
amendment  of the Plan shall not be  impaired by such  amendment  unless (i) the
Company  requests  the  consent of the person to whom the option was granted and
(ii) such person consents in writing.

12.      TERMINATION OR SUSPENSION OF THE PLAN.

         (a) The Board may suspend or terminate the Plan at any time. No options
may be  granted  under  the  Plan  while  the Plan is  suspended  or after it is
terminated.

         (b) Rights and  obligations  under any option granted while the Plan is
in effect shall not be impaired by suspension or termination of the Plan, except
with the consent of the person to whom the option was granted.

                                       6
<PAGE>

         (c) The Plan shall  terminate  upon the occurrence of any of the events
described in subparagraph 10(b) above.

13.      EFFECTIVE DATE OF PLAN; CONDITIONS OF EXERCISE.

         (a) The Plan  shall  become  effective  upon  adoption  by the Board of
Directors,  subject to the condition subsequent that the Plan is approved by the
stockholders of the Company.

         (b) No option  granted under the Plan shall be exercised or exercisable
unless and until the condition of subparagraph 13(a) above has been met.


                                       7



                                                                     Appendix A


                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.


                          MOLECULAR DEVICES CORPORATION
                             1995 STOCK OPTION PLAN
                            ADOPTED OCTOBER 30, 1995
                  APPROVED BY SHAREHOLDERS ON DECEMBER 12, 1995
                    AMENDED BY THE BOARD ON JANUARY 29, 1999
                 AS AMENDED BY THE STOCKHOLDERS ON MAY 20, 1999


1.       PURPOSES.

         (a) The  purpose  of the Plan is to  provide a means by which  selected
Employees and Directors of and  Consultants to the Company,  and its Affiliates,
may be given an opportunity to purchase stock of the Company.

         (b) The Company,  by means of the Plan, seeks to retain the services of
persons who are now Employees or Directors of or  Consultants  to the Company or
its  Affiliates,  to secure and retain the services of new Employees,  Directors
and  Consultants,  and to provide  incentives  for such persons to exert maximum
efforts for the success of the Company and its Affiliates.

         (c) The Company  intends that the Options  issued under the Plan shall,
in the  discretion  of the Board or any  Committee to which  responsibility  for
administration  of the Plan has been delegated  pursuant to subsection  3(c), be
either Incentive Stock Options or Nonstatutory Stock Options.  All Options shall
be separately  designated  Incentive Stock Options or Nonstatutory Stock Options
at the time of grant,  and in such form as issued  pursuant  to Section 6, and a
separate  certificate  or  certificates  will be issued for shares  purchased on
exercise of each type of Option.

2.       DEFINITIONS.

         (a) "Affiliate" means any parent corporation or subsidiary corporation,
whether now or hereafter existing, as those terms are defined in Sections 424(e)
and (f) respectively, of the Code.

         (b) "Board" means the Board of Directors of the Company.

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

         (d) "Committee" means a Committee  appointed by the Board in accordance
with subsection 3(c) of the Plan.

         (e) "Company" means Molecular Devices Corporation.

         (f) "Consultant" means any person, including an advisor, engaged by the
Company or an Affiliate to render consulting services and who is compensated for
such services,  provided

                                       1
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

that the term  "Consultant"  shall  not  include  Directors  who are paid only a
director's  fee by the  Company or who are not  compensated  by the  Company for
their services as Directors.

         (g) "Continuous  Status as an Employee,  Director or Consultant"  means
the employment or relationship as a Director or Consultant is not interrupted or
terminated.  The Board, in its sole discretion, may determine whether Continuous
Status as an Employee, Director or Consultant shall be considered interrupted in
the case of: (i) any leave of absence  approved  by the  Board,  including  sick
leave,  military leave,  or any other personal leave; or (ii) transfers  between
locations of the Company or between the Company, Affiliates or their successors.

         (h) "Covered  Employee" means the chief executive  officer and the four
(4)  other  highest   compensated   officers  of  the  Company  for  whom  total
compensation is required to be reported to shareholders  under the Exchange Act,
as determined for purposes of Section 162(m) of the Code.

         (i) "Director" means a member of the Board.

         (j)  "Employee"  means any person,  including  Officers and  Directors,
employed by the Company or any  Affiliate of the Company.  Neither  service as a
Director nor payment of a director's  fee by the Company  shall be sufficient to
constitute "employment" by the Company.

         (k)  "Exchange  Act"  means the  Securities  Exchange  Act of 1934,  as
amended.

         (l) "Fair Market  Value" means as of any date,  the value of the Common
Stock of the Company determined as follows:

                  (1) If the  common  stock is listed on any  established  stock
exchange or a national market system,  including without limitation the National
Market System of the National Association of Securities Dealers,  Inc. Automated
Quotation  ("NASDAQ")  System,  the Fair Market Value of a share of common stock
shall be the closing sales price for such stock (or the closing bid, if no sales
were  reported) as quoted on such system or exchange  (or the exchange  with the
greatest volume of trading in common stock) on the last market trading day prior
to the day of  determination,  as reported  in the Wall  Street  Journal or such
other source as the Board deems reliable;

                  (2) If the common  stock is quoted on the NASDAQ  System  (but
not  on  the  National  Market  System  thereof)  or is  regularly  quoted  by a
recognized  securities  dealer but  selling  prices are not  reported,  the Fair
Market  Value of a share of common  stock shall be the mean  between the bid and
asked  prices for the common  stock on the last market  trading day prior to the
day of  determination,  as  reported  in the Wall  Street  Journal or such other
source as the Board deems reliable;

                  (3) In the  absence  of an  established  market for the common
stock, the Fair Market Value shall be determined in good faith by the Board.

                                       2
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

         (m) "Incentive  Stock Option" means an Option intended to qualify as an
incentive  stock  option  within the  meaning of Section 422 of the Code and the
regulations promulgated thereunder.

         (n) "Non-Employee  Director" means a Director of the Company who either
(i) is not a current  Employee  or  Officer  of the  Company  or its parent or a
subsidiary,  does not receive  compensation  (directly or  indirectly)  from the
Company or its parent or a subsidiary  for services  rendered as a consultant or
in any  capacity  other  than as a  Director  (except  for an amount as to which
disclosure would not be required under Item 404(a) of Regulation S-K promulgated
pursuant to the Securities Act ("Regulation S-K")), does not possess an interest
in any other  transaction  as to which  disclosure  would be required under Item
404(a) of  Regulation  S-K and is not engaged in a business  relationship  as to
which  disclosure would be required under Item 404(b) of Regulation S-K; or (ii)
is otherwise considered a "non-employee director" for purposes of Rule 16b-3.

         (o) "Nonstatutory Stock Option" means an Option not intended to qualify
as an Incentive Stock Option.

         (p)  "Officer"  means a person who is an officer of the Company  within
the  meaning  of Section 16 of the  Exchange  Act and the rules and  regulations
promulgated thereunder.

         (q) "Option" means a stock option granted pursuant to the Plan.

         (r) "Option  Agreement" means a written  agreement  between the Company
and an Optionee  evidencing  the terms and  conditions of an  individual  Option
grant. Each Option Agreement shall be subject to the terms and conditions of the
Plan.

         (s) "Optionee"  means an Employee,  Director or Consultant who holds an
outstanding Option.

         (t) "Outside Director" means a Director who either (i) is not a current
employee of the Company or an  "affiliated  corporation"  (within the meaning of
the Treasury regulations promulgated under Section 162(m) of the Code), is not a
former  employee  of  the  Company  or  an  "affiliated  corporation"  receiving
compensation  for prior  services  (other than  benefits  under a tax  qualified
pension plan), was not an officer of the Company or an "affiliated  corporation"
at any time, and is not currently receiving direct or indirect remuneration from
the Company or an  "affiliated  corporation"  for services in any capacity other
than as a Director,  or (ii) is otherwise  considered an "outside  director" for
purposes of Section 162(m) of the Code.

         (u) "Plan" means this Molecular Devices 1995 Stock Option Plan.

         (v) "Rule 16b-3" means Rule 16b-3 of the Exchange Act or any  successor
to Rule 16b-3,  as in effect when  discretion is being exercised with respect to
the Plan.

                                       3
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

3.       ADMINISTRATION.

         (a) The Plan shall be  administered  by the Board  unless and until the
Board delegates administration to a Committee, as provided in subsection 3(c).

         (b) The  Board  shall  have the  power,  subject  to,  and  within  the
limitations of, the express provisions of the Plan:

                  (1) To  determine  from  time to  time  which  of the  persons
eligible under the Plan shall be granted Options; when and how each Option shall
be  granted;  whether  an  Option  will  be  an  Incentive  Stock  Option  or  a
Nonstatutory Stock Option; the provisions of each Option granted (which need not
be identical), including the time or times such Option may be exercised in whole
or in part;  and the  number of shares  for which an Option  shall be granted to
each such person.

                  (2) To construe  and  interpret  the Plan and Options  granted
under it, and to  establish,  amend and  revoke  rules and  regulations  for its
administration.  The Board,  in the  exercise  of this  power,  may  correct any
defect,  omission or inconsistency in the Plan or in any Option Agreement,  in a
manner and to the extent it shall deem  necessary  or expedient to make the Plan
fully effective.

                  (3) To amend the Plan or an Option as provided in Section 11.

                  (4)  Generally,  to exercise  such powers and to perform  such
acts as the Board deems  necessary or expedient to promote the best interests of
the Company.

         (c) The Board may  delegate  administration  of the Plan to a committee
composed of not fewer than two (2) members (the "Committee"), all of the members
of which  Committee  shall be  Non-Employee  Directors  and may also be,  in the
discretion of the Board, Outside Directors.  If administration is delegated to a
Committee,  the Committee shall have, in connection with the  administration  of
the Plan, the powers theretofore  possessed by the Board (and references in this
Plan to the Board shall thereafter be to the Committee),  subject,  however,  to
such  resolutions,  not inconsistent  with the provisions of the Plan, as may be
adopted from time to time by the Board.  The Board may abolish the  Committee at
any time and revest in the Board the administration of the Plan. Notwithstanding
anything  in this  Section 3 to the  contrary,  the Board or the  Committee  may
delegate to a committee  of one or more  members of the Board the  authority  to
grant Options to eligible  persons who (1) are not then subject to Section 16 of
the Exchange Act and/or (2) are either (i) not then  Covered  Employees  and are
not  expected  to be  Covered  Employees  at the time of  recognition  of income
resulting from such Option, or (ii) not persons with respect to whom the Company
wishes to comply with Section 162(m) of the Code.

4.       SHARES SUBJECT TO THE PLAN.

         (a) Subject to the  provisions  of Section 10  relating to  adjustments
upon changes in stock,  the stock that may be sold pursuant to Options shall not
exceed in the aggregate one million  seven  hundred fifty  thousand  (1,750,000)
shares of Company  common stock,  plus up to one million  (1,000,000)  shares of
Company  Common Stock to the extent that such shares

                                       4
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

previously  reserved under the Company's  terminated 1988 Stock Option Plan (the
"1988  Plan")  (i)  have  not,  as of the  date of the  adoption  of this  Plan,
previously  been issued pursuant to the exercise of options under the 1988 Plan,
and (ii) are not, as of the date of  adoption  of this Plan,  subject to options
outstanding  under the 1988 Plan.  If any Option  granted  under the Plan or any
stock  option  granted  under  the 1988  Plan  shall  for any  reason  expire or
otherwise terminate, in whole or in part, without having been exercised in full,
the stock not acquired  shall revert to and again become  available for issuance
under this Plan.

         (b) The stock subject to the Plan may be unissued  shares or reacquired
shares, bought on the market or otherwise.

5.       ELIGIBILITY.

         (a)  Incentive   Stock  Options  may  be  granted  only  to  Employees.
Nonstatutory  Stock  Options  may be granted  only to  Employees,  Directors  or
Consultants.

         (b) No person  shall be eligible  for the grant of an Option if, at the
time of grant,  such person owns (or is deemed to own pursuant to Section 424(d)
of the Code) stock  possessing more than ten percent (10%) of the total combined
voting power of all classes of stock of the Company or of any of its  Affiliates
unless the  exercise  price of such  Option is at least one  hundred ten percent
(110%)  of the  Fair  Market  Value of such  stock at the date of grant  and the
Option is not  exercisable  after the expiration of five (5) years from the date
of grant.

         (c) Subject to the  provisions  of Section 10  relating to  adjustments
upon  changes  in stock,  no person  shall be  eligible  to be  granted  Options
covering  more than Five  Hundred  Thousand  (500,000)  shares of the  Company's
common stock in any calendar year.

6.       OPTION PROVISIONS.

         Each  Option  shall be in such form and shall  contain  such  terms and
conditions  as the Board  shall deem  appropriate.  The  provisions  of separate
Options  need  not  be  identical,   but  each  Option  shall  include  (through
incorporation of provisions  hereof by reference in the Option or otherwise) the
substance of each of the following provisions:

         (a) Term. No Option shall be  exercisable  after the  expiration of ten
(10) years from the date it was granted.

         (b) Price.  The exercise price of each Incentive  Stock Option shall be
not less than one hundred  percent  (100%) of the Fair Market Value of the stock
subject to the Option on the date the Option is granted.  The exercise  price of
each Nonstatutory Stock Option shall be not less than eighty-five  percent (85%)
of the Fair  Market  Value of the stock  subject  to the  Option on the date the
Option  is  granted.  Notwithstanding  the  foregoing,  an Option  (whether  and
Incentive  Stock  Option or  Nonstatutory  Stock  Option) may be granted with an
option  exercise price lower than that set forth above if such option is granted
pursuant  to an  assumption  or  substitution  for  another  option  in a manner
qualifying with the provisions of Section 424(a) of the Code.

                                       5
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

         (c) Consideration.  The purchase price of stock acquired pursuant to an
Option  shall be paid,  to the  extent  permitted  by  applicable  statutes  and
regulations,  either (i) in cash at the time the Option is exercised, or (ii) at
the  discretion of the Board or the  Committee,  at the time of the grant of the
Option, (A) by delivery to the Company of other common stock of the Company, (B)
according to a deferred payment or other arrangement (which may include, without
limiting the generality of the  foregoing,  the use of other common stock of the
Company)  with the person to whom the Option is granted or to whom the Option is
transferred  pursuant  to  subsection  6(d),  or (C) in any other  form of legal
consideration that may be acceptable to the Board.

         In the case of any  deferred  payment  arrangement,  interest  shall be
payable at least  annually  and shall be charged at the minimum rate of interest
necessary to avoid the treatment as interest, under any applicable provisions of
the Code,  of any amounts  other than  amounts  stated to be interest  under the
deferred payment arrangement.

         (d) Transferability. An Option shall not be transferable except by will
or by the laws of descent and distribution,  and shall be exercisable during the
lifetime  of the  person to whom the Option is granted  only by such  person.  A
Nonstatutory  Stock  Option shall not be  transferable  except by will or by the
laws of descent  and  distribution  or pursuant  to a domestic  relations  order
satisfying the  requirements  of Rule 16b-3 and the rules  thereunder (a "DRO"),
and shall be exercisable during the lifetime of the person to whom the Option is
granted only by such person or any  transferee  pursuant to a DRO. The person to
whom the Option is granted may, by delivering written notice to the Company,  in
a form satisfactory to the Company, designate a third party who, in the event of
the death of the Optionee, shall thereafter be entitled to exercise the Option.

         (e) Vesting.  The total number of shares of stock  subject to an Option
may,  but need not, be allotted in periodic  installments  (which may,  but need
not, be equal).  The Option  Agreement may provide that from time to time during
each of such installment  periods,  the Option may become  exercisable  ("vest")
with respect to some or all of the shares  allotted to that  period,  and may be
exercised  with  respect to some or all of the shares  allotted  to such  period
and/or any prior period as to which the Option  became  vested but was not fully
exercised.  The Option may be subject to such other terms and  conditions on the
time or times when it may be  exercised  (which may be based on  performance  or
other  criteria)  as the  Board may deem  appropriate.  The  provisions  of this
subsection  6(e) are  subject to any Option  provisions  governing  the  minimum
number of shares as to which an Option may be exercised.

         (f) Securities Law Compliance. The Company may require any Optionee, or
any  person  to whom an  Option  is  transferred  under  subsection  6(d),  as a
condition  of  exercising  any  such  Option,  (1) to  give  written  assurances
satisfactory  to the Company as to the  Optionee's  knowledge and  experience in
financial  and  business  matters  and/or to employ a  purchaser  representative
reasonably  satisfactory to the Company who is knowledgeable  and experienced in
financial  and business  matters,  and that he or she is capable of  evaluating,
alone or together  with the  purchaser  representative,  the merits and risks of
exercising the Option;  and (2) to give written  assurances  satisfactory to the
Company  stating that such person is acquiring  the stock  subject to the Option
for such  person's own account and not with any present  intention of selling or
otherwise distributing the stock. The foregoing requirements, and any assurances
given pursuant

                                       6
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

to such  requirements,  shall be  inoperative  if (i) the issuance of the shares
upon the  exercise  of the Option  has been  registered  under a then  currently
effective  registration  statement  under the Securities Act of 1933, as amended
(the  "Securities   Act"),  or  (ii)  as  to  any  particular   requirement,   a
determination  is made by counsel for the Company that such requirement need not
be met in the  circumstances  under the then  applicable  securities  laws.  The
Company  may,  upon  advice of counsel to the  Company,  place  legends on stock
certificates   issued  under  the  Plan  as  such  counsel  deems  necessary  or
appropriate in order to comply with applicable securities laws,  including,  but
not limited to, legends restricting the transfer of the stock.

         (g)  Termination  of  Employment  or  Relationship  as  a  Director  or
Consultant.  In the  event  an  Optionee's  Continuous  Status  as an  Employee,
Director  or  Consultant  terminates  (other than upon the  Optionee's  death or
disability), the Optionee may exercise his or her Option (to the extent that the
Optionee was entitled to exercise it at the date of termination) but only within
such period of time ending on the earlier of (i) the date three (3) months after
the termination of the Optionee's Continuous Status as an Employee,  Director or
Consultant,  or such longer or shorter period specified in the Option Agreement,
or (ii) the  expiration  of the term of the  Option as set  forth in the  Option
Agreement.  If, after  termination,  the  Optionee  does not exercise his or her
Option  within the time  specified  in the Option  Agreement,  the Option  shall
terminate,  and the shares  covered  by such  Option  shall  revert to and again
become available for issuance under the Plan.

         (h)  Disability  of  Optionee.  In the event an  Optionee's  Continuous
Status as an  Employee,  Director or  Consultant  terminates  as a result of the
Optionee's  disability,  the  Optionee  may  exercise  his or her Option (to the
extent  that  the   Optionee  was  entitled  to  exercise  it  at  the  date  of
termination),  but only  within such period of time ending on the earlier of (i)
the date  twelve  (12)  months  following  such  termination  (or such longer or
shorter period specified in the Option Agreement), or (ii) the expiration of the
term of the  Option as set  forth in the  Option  Agreement.  If, at the date of
termination,  the Optionee is not entitled to exercise his or her entire Option,
the shares  covered by the  unexercisable  portion of the Option shall revert to
and again become  available for issuance under the Plan. If, after  termination,
the  Optionee  does not  exercise  his or her Option  within the time  specified
herein, the Option shall terminate,  and the shares covered by such Option shall
revert to and again become available for issuance under the Plan.

         (i) Death of Optionee. In the event of the death of an Optionee during,
or within a period  specified  in the  Option  after  the  termination  of,  the
Optionee's Continuous Status as an Employee,  Director or Consultant, the Option
may be exercised (to the extent the Optionee was entitled to exercise the Option
at the date of death) by the  Optionee's  estate,  by a person who  acquired the
right to exercise the Option by bequest or inheritance or by a person designated
to exercise the option upon the Optionee's  death  pursuant to subsection  6(d),
but only within the period  ending on the earlier of (i) the date  eighteen (18)
months  following the date of death (or such longer or shorter period  specified
in the Option  Agreement),  or (ii) the expiration of the term of such Option as
set forth in the Option  Agreement.  If, at the time of death,  the Optionee was
not entitled to exercise  his or her entire  Option,  the shares  covered by the
unexercisable  portion of the Option shall revert to and again become  available
for issuance under the Plan. If, after death, the Option is not exercised within
the time specified herein, the Option shall

                                       7
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

terminate,  and the shares  covered  by such  Option  shall  revert to and again
become available for issuance under the Plan.

         (j) Early Exercise.  The Option may, but need not,  include a provision
whereby  the  Optionee  may elect at any time  while an  Employee,  Director  or
Consultant to exercise the Option as to any part or all of the shares subject to
the Option  prior to the full  vesting of the  Option.  Any  unvested  shares so
purchased may be subject to a repurchase right in favor of the Company or to any
other restriction the Board determines to be appropriate.

         (k)  Withholding.  To the  extent  provided  by the  terms of an Option
Agreement,  the Optionee may satisfy any federal, state or local tax withholding
obligation relating to the exercise of such Option by any of the following means
or by a combination of such means: (1) tendering a cash payment; (2) authorizing
the Company to withhold  shares  from the shares of the common  stock  otherwise
issuable  to the  Optionee as a result of the  exercise  of the  Option;  or (3)
delivering to the Company owned and  unencumbered  shares of the common stock of
the Company.

7.       COVENANTS OF THE COMPANY.

         (a) During the terms of the Options,  the Company shall keep  available
at all times the number of shares of stock required to satisfy such Options.

         (b) The Company shall seek to obtain from each regulatory commission or
agency having  jurisdiction  over the Plan such  authority as may be required to
issue and sell shares of stock upon exercise of the Options; provided,  however,
that this  undertaking  shall not  require  the  Company to  register  under the
Securities  Act either  the Plan,  any  Option or any stock  issued or  issuable
pursuant to any such Option. If, after reasonable efforts, the Company is unable
to obtain from any such  regulatory  commission  or agency the  authority  which
counsel for the Company  deems  necessary  for the lawful  issuance  and sale of
stock under the Plan,  the  Company  shall be relieved  from any  liability  for
failure to issue and sell stock upon  exercise of such Options  unless and until
such authority is obtained.

8.       USE OF PROCEEDS FROM STOCK.

         Proceeds from the sale of stock  pursuant to Options  shall  constitute
general funds of the Company.

9.       MISCELLANEOUS.

         (a) The Board shall have the power to  accelerate  the time at which an
Option may first be  exercised  or the time  during  which an Option or any part
thereof will vest pursuant to subsection 6(e), notwithstanding the provisions in
the  Option  stating  the time at which it may  first be  exercised  or the time
during which it will vest.

         (b) Neither an Optionee nor any person to whom an Option is transferred
under subsection 6(d) shall be deemed to be the holder of, or to have any of the
rights of a holder with

                                       8
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

respect to, any shares  subject to such Option  unless and until such person has
satisfied all requirements for exercise of the Option pursuant to its terms.

         (c) Nothing in the Plan or any  instrument  executed or Option  granted
pursuant  thereto  shall  confer  upon any  Employee,  Director,  Consultant  or
Optionee any right to continue in the employ of the Company or any Affiliate (or
to continue acting as a Director or Consultant) or shall affect the right of the
Company or any  Affiliate to  terminate  the  employment  or  relationship  as a
Director or Consultant of any Employee, Director, Consultant or Optionee with or
without cause.

         (d) To the extent that the aggregate  Fair Market Value  (determined at
the time of  grant) of stock  with  respect  to which  Incentive  Stock  Options
granted after 1986 are exercisable for the first time by any Optionee during any
calendar  year under all plans of the  Company  and its  Affiliates  exceeds one
hundred  thousand  dollars  ($100,000),  the Options or portions  thereof  which
exceed such limit  (according to the order in which they were granted)  shall be
treated as Nonstatutory Stock Options.

         (e) (1) The Board or the Committee  shall have the authority to effect,
at any time and from time to time (i) the repricing of any  outstanding  Options
under the Plan and/or (ii) with the consent of the affected  holders of Options,
the  cancellation  of any  outstanding  Options  and the  grant in  substitution
therefor of new Options under the Plan covering the same or different numbers of
shares of Common  Stock,  but having an  exercise  price per share not less than
eighty-five  percent (85%) of the Fair Market Value (one hundred  percent (100%)
of the Fair Market  Value in the case of an  Incentive  Stock  Option or, in the
case of a ten percent (10%)  stockholder  (as defined in subsection  5(b)),  not
less than one hundred and ten percent (110%) of the Fair Market Value) per share
of Common Stock on the new grant date.

             (2) Shares subject to an Option canceled under this subsection 9(e)
shall continue to be counted  against the maximum award of Options  permitted to
be granted  pursuant to subsection  5(c) of the Plan. The repricing of an Option
under this  subsection  9(e),  resulting in a reduction  of the exercise  price,
shall be deemed to be a cancellation  of the original  Option and the grant of a
substitute  Option;  in the event of such  repricing,  both the original and the
substituted  Options  shall be counted  against  the  maximum  awards of Options
permitted to be granted  pursuant to subsection 5(c) of the Plan. The provisions
of this  subsection  9(e) shall be  applicable  only to the extent  required  by
Section 162(m) of the Code.

10.      ADJUSTMENTS UPON CHANGES IN STOCK.

         (a) If any change is made in the stock  subject to the Plan, or subject
to any Option (through merger, consolidation, reorganization,  recapitalization,
stock dividend,  dividend in property other than cash, stock split,  liquidating
dividend,  combination  of  shares,  exchange  of  shares,  change in  corporate
structure or otherwise), the Plan will be appropriately adjusted in the types of
securities  and  maximum  number  of  shares  subject  to the Plan  pursuant  to
subsection  4(a) and the maximum number of shares subject to award to any person
during any  calendar  year  pursuant to  subsection  5(c),  and the  outstanding
Options will be appropriately  adjusted in the

                                       9
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

types of securities and number of shares and price per share of stock subject to
such outstanding Options.

         (b)  In the  event  of:  (1) a  dissolution,  liquidation  or  sale  of
substantially all of the assets of the Company; (2) a merger or consolidation in
which the Company is not the surviving  corporation;  or (3) a reverse merger in
which the Company is the surviving  corporation  but the shares of the Company's
common  stock  outstanding  immediately  preceding  the merger are  converted by
virtue of the merger  into other  property,  whether in the form of  securities,
cash or  otherwise,  then to the extent  permitted  by  applicable  law: (i) any
surviving  corporation  shall assume any Options  outstanding  under the Plan or
shall substitute  similar Options for those  outstanding under the Plan, or (ii)
such Options shall continue in full force and effect. In the event any surviving
corporation refuses to assume or continue such Options, or to substitute similar
options for those outstanding under the Plan, then, with respect to Options held
by persons then performing services as Employees, Directors or Consultants, then
such Options shall be terminated if not exercised prior to such event; provided,
however,  that the time during which such  Options may be exercised  may, at the
discretion of the Board of Directors,  be accelerated and the Options terminated
if not exercised prior to such event.

11.      AMENDMENT OF THE PLAN AND OPTIONS.

         (a) The Board at any time,  and from time to time,  may amend the Plan.
However,  except as provided in Section 10 relating to adjustments  upon changes
in stock, no amendment shall be effective unless approved by the stockholders of
the  Company  within  twelve  (12)  months  before or after the  adoption of the
amendment, where the amendment will:

             (1)  Increase the number of shares  reserved for Options  under the
Plan;

             (2) Modify the requirements as to eligibility for  participation in
the Plan (to the extent such modification requires stockholder approval in order
for the Plan to  satisfy  the  requirements  of  Section  422 of the Code or any
Nasdaq or securities exchange listing requirements); or

             (3) Modify the Plan in any other way if such modification  requires
stockholder  approval  in order  for the Plan to  satisfy  the  requirements  of
Section 422 of the Code or to comply with the requirements of Rule 16b-3, or any
Nasdaq or securities exchange listing requirements.

         (b) The Board may in its sole discretion  submit any other amendment to
the Plan for stockholder approval,  including, but not limited to, amendments to
the Plan intended to satisfy the  requirements of Section 162(m) of the Code and
the   regulations    promulgated   thereunder   regarding   the   exclusion   of
performance-based  compensation  from the limit on  corporate  deductibility  of
compensation paid to certain executive officers.

         (c) It is expressly  contemplated  that the Board may amend the Plan in
any respect the Board deems necessary or advisable to provide Optionees with the
maximum benefits provided or to be provided under the provisions of the Code and
the  regulations  promulgated  thereunder

                                       10
<PAGE>
                                        All  references  herein  to  numbers  of
                                        shares  already  take into  account  and
                                        give effect to the 2-for-3 reverse stock
                                        split effective on December 7, 1995.

relating to Incentive  Stock Options  and/or to bring the Plan and/or  Incentive
Stock Options granted under it into compliance therewith.

         (d) Rights and obligations under any Option granted before amendment of
the Plan  shall not be  impaired  by any  amendment  of the Plan  unless (i) the
Company  requests  the  consent of the person to whom the Option was granted and
(ii) such person consents in writing.

         (e) The Board at any time,  and from time to time,  may amend the terms
of any one or more Options;  provided,  however, that the rights and obligations
under any Option  shall not be  impaired  by any such  amendment  unless (i) the
Company  requests  the  consent of the person to whom the Option was granted and
(ii) such person consents in writing.

12.      TERMINATION OR SUSPENSION OF THE PLAN.

         (a) The Board may  suspend or  terminate  the Plan at any time.  Unless
sooner terminated,  the Plan shall terminate on October 29, 2005, which shall be
within ten (10) years from the date the Plan is adopted by the Board or approved
by the  stockholders  of the Company,  whichever  is earlier.  No Options may be
granted under the Plan while the Plan is suspended or after it is terminated.

         (b) Rights and  obligations  under any Option granted while the Plan is
in effect shall not be impaired by suspension or termination of the Plan, except
with the consent of the person to whom the Option was granted.

13.      EFFECTIVE DATE OF PLAN.

         The Plan shall become  effective  as  determined  by the Board,  but no
Options granted under the Plan shall be exercised  unless and until the Plan has
been approved by the stockholders of the Company, which approval shall be within
twelve  (12)  months  before or after the date the Plan is adopted by the Board,
and, if required,  an appropriate  permit has been issued by the Commissioner of
Corporations of the State of California.


                                       11


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
THIS  SCHEDULE  CONTAINS  SUMMARY  FINANCIAL   INFORMATION  EXTRACTED  FROM  THE
CONDENSED  CONSOLIDATED  BALANCE SHEET AS OF JUNE 30, 1999 AND THE  CONSOLIDATED
STATEMENT  OF INCOME FOR THE SIX MONTHS  ENDED JUNE 30, 1999 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                   1,000

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   JUN-30-1999
<CASH>                                         25,036
<SECURITIES>                                        0
<RECEIVABLES>                                  16,284
<ALLOWANCES>                                      376
<INVENTORY>                                     6,356
<CURRENT-ASSETS>                               50,283
<PP&E>                                          7,824
<DEPRECIATION>                                  5,665
<TOTAL-ASSETS>                                 57,473
<CURRENT-LIABILITIES>                           7,959
<BONDS>                                             0
                               0
                                         0
<COMMON>                                            9
<OTHER-SE>                                     49,505
<TOTAL-LIABILITY-AND-EQUITY>                   57,473
<SALES>                                        28,308
<TOTAL-REVENUES>                               28,308
<CGS>                                          10,547
<TOTAL-COSTS>                                  10,547
<OTHER-EXPENSES>                                    0
<LOSS-PROVISION>                                    0
<INTEREST-EXPENSE>                                  0
<INCOME-PRETAX>                                 5,032
<INCOME-TAX>                                    1,938
<INCOME-CONTINUING>                             3,094
<DISCONTINUED>                                      0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                    3,094
<EPS-BASIC>                                    0.32
<EPS-DILUTED>                                    0.31


</TABLE>


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