MOLECULAR DYNAMICS INC
10-K, 1998-03-26
LABORATORY ANALYTICAL INSTRUMENTS
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                                 UNITED STATES 
                       SECURITIES AND EXCHANGE COMMISSION 

                             WASHINGTON, D.C. 20549 

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


                                   FORM 10-K

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

                    For the Year Ended December 28, 1997, 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 0-19955 


                            MOLECULAR DYNAMICS, INC. 
             (Exact name of Registrant as specified in its charter)


         Delaware                                            94-3050031 
(State or other jurisdiction of            (I.R.S. Employer Identification No.)
 incorporation or organization)


                             928 East Arques Avenue 
                           Sunnyvale, California 94086 
                   (Address of principal executive offices)


Registrant's telephone number, including area code:  (408) 773-1222 

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

Securities registered pursuant to Section 12(b) of the Act: 

                                                          Name of each exchange
Title of each class                                        on which registered
      None                                                        None 

Securities registered pursuant to Section 12(g) of the Act: 

Common Stock, $.01 par value 

                  Indicate by check mark whether the Registrant (1) has filed 
all reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months (or for such shorter period 
that the registrant was required to file such reports), and (2) has been subject
to such filing requirements for the past 90 days. 

                  Yes      [X]              No 

                  Indicate by check mark if disclosure of delinquent filers 
pursuant to Item 405 of Regulation S-K is not contained herein, and will not be 
contained, to the best of Registrant's knowledge, in definitive proxy or 
information statements incorporated by reference in Part III of this Form 10-K 
or any amendment to this Form 10-K. [ ] 

                  The aggregate market value of voting stock held by 
nonaffiliates of the Registrant, as of March 18, 1998 was approximately 
$98,834,000 (based upon the closing price for shares of the Registrant's Common
Stock as reported by the National Market System of the National Association of 
Securities Dealers, Inc. Automated Quotation System on that date). Shares of 
Common Stock held by each officer, director and holder of 5% or more of the 
outstanding Common Stock have been excluded in that such persons may be deemed 
to be affiliates. This determination of affiliate status is not necessarily a 
conclusive determination for other purposes. 

                  On March 18, 1998, approximately 10,443,495 shares of Common 
Stock, $.01 par value, were outstanding. 

                  Documents Incorporated by Reference 

                  Designated portions of the following documents are 
incorporated by reference into this Annual Report on Form 10-K where indicated: 

                  Molecular Dynamics, Inc. Proxy Statement for the 1998 Annual 
Meeting of Stockholders to be held on May 19, 1998, Part III. 





















<PAGE>
        PART I


Item 1. Business

        Except for the historical information contained herein, the matters 
discussed in this document are forward-looking statements that involve 
certain risks and uncertainties, including the risks and uncertainties set 
forth below and under "Management's Discussion and Analysis of Financial 
Condition and Results of Operations -- Factors that May Affect Future 
Results."

Overview

        Molecular Dynamics is a leading developer, manufacturer and 
international marketer of systems that accelerate genetic discovery and 
analysis. The Company markets a family of systems that significantly 
enhance the ability of scientists to visualize, quantify and analyze 
genetic information. These instrument systems improve the productivity of 
the life science researcher by automating widely used biotechnology 
research procedures and offering quantitative imaging solutions.  The 
Company believes the dramatic increases in analytical sensitivity and speed 
provided by its products enable advances in life science research that 
would not otherwise be possible.

        The Company markets its products worldwide to universities, 
government research laboratories, and biotechnology, pharmaceutical, 
genomics and chemical companies.  It provides direct sales, service and 
support of its products in the United States, the United Kingdom, Germany, 
France, Japan, and Canada and through exclusive distributors in other 
countries.  Molecular Dynamics has shipped more than 4,000 instrument 
systems to customers in 43 countries.

        The Company was incorporated in Delaware on March 10, 1992 to 
succeed to the business of a California corporation named "Molecular 
Dynamics," which was incorporated on July 2, 1987.  This reincorporation 
was consummated in April 1992. References to "Molecular Dynamics", 
"Molecular", and "the Company" refer to Molecular Dynamics, Inc., including 
its California predecessor, and its subsidiaries.


Scientific Background

General

        Over the past ten years, molecular biology research has produced 
many important breakthroughs in our understanding and treatment of disease 
and genetic disorders. New methods of genetic analysis are also being used 
to improve the productivity and disease resistance of crops and livestock. 
The continued development of innovative techniques for identification and 
analysis of genes and proteins has fueled the rapid progress of 
biotechnology research.

        In order to remain competitive in life science research, scientists 
require advanced instrumentation that enables efficient use of these 
powerful new molecular techniques. Although most of these techniques began 
as labor-intensive manual procedures, increased competition among academic 
and commercial research groups and overall increases in the number of 
laboratory experiments have resulted in scientists seeking more efficient 
methods for conducting and analyzing experiments.

        In molecular biology, almost all experiments start with a complex 
mixture of DNA or proteins that require separation so that individual 
molecules may be identified and analyzed. The separations are generally 
accomplished by gel electrophoresis, a process that results in a two-
dimensional pattern of macromolecules containing information about their 
size, amount, and identity. Traditionally, the electrophoresis pattern was 
visualized by staining or imaging on film. Older, slower methods for 
analyzing the molecules are rapidly becoming replaced by faster, more 
automated methods in an ongoing quest to increase the rate of research 
progress in molecular biology labs.

        Similar challenges apply to the field of cell biology.  Many 
experiments in this area have recently become possible as increasingly 
efficient, accurate and miniaturized technology has been developed to 
rapidly visualize and store digital images and provide quantitative 
analysis of the resulting data.

        Both academic and commercial life science laboratories operate in 
highly competitive environments, where efficient data acquisition and 
analysis are crucial to success. Research organizations and government 
regulatory agencies, such as the Food and Drug Administration, are 
demanding increasingly accurate and quantitative analyses. The Company 
believes that its current and future products are well positioned to serve 
the growing and evolving needs of researchers in these areas.

Genomics

        The plan to sequence the entire human genome, conceived in the late 
1980s, has spawned a genomics revolution whose scope and impact will most 
likely be greater than originally anticipated.   The visionaries who 
founded the early genomics companies believed that sequencing the human 
genome was the beginning of a fundamental change in biological 
understanding that will alter disease diagnostics, pharmaceutical discovery 
and development, and the very nature of medical practice.

        The pharmaceutical industry has embraced the promise of the genomics 
revolution, and collaborative research and investment agreements between 
pharmaceutical, genomics and educational entities are now common.


Products and Systems


        Molecular Dynamics was founded to develop a new generation of 
instrumentation that automates existing procedures and enables new 
analytical techniques in molecular and cell biology research.  The 
Company's gel and blot scanning systems, which to date have represented the 
bulk of the Company's sales, use lasers to image and analyze 
electrophoresis gels and other two-dimensional arrays.  These products use 
various detection methods, including radioactivity and fluorescence. 
Radioactivity as a method of detection is decreasing because of handling 
hazards and waste disposal problems, whereas the use of fluorescence is 
growing rapidly. For several years, Molecular Dynamics has had a strategic 
focus on the emerging fluorescence opportunity that offers the potential 
for an additional revenue source in the form of consumable reagents.

        The Company has historically targeted its products to meet the needs 
of more than 50,000 research groups worldwide engaged in life science 
research.  These groups include academic institutions, government 
laboratories, private foundations and biotechnology, pharmaceutical and 
chemical companies.  These groups are estimated to have spent over $1 
billion in 1997 on bioanalytical instrumentation, including liquid 
chromatography, gel electrophoresis, sequencing, synthesis, confocal 
microscopy, and microplate detection.  The need to maximize productivity 
influences the researcher's allocation of capital funds among this 
instrumentation.  Until 1997, the Company's products addressed only the 
portion of this market relating to gel electrophoresis and, to a lesser 
extent, confocal microscopy and microplate detection.

        Over the past several years, the Company has invested heavily in the 
development of systems that address larger and rapidly-growing markets. 
These markets, which include pharmaceuticals, genomics, forensics, 
agriculture and clinical diagnostics, are characterized by the need for 
high throughput analysis and complete analytical solutions requiring a 
combination of automated instrumentation, reagent chemistry kits and 
optimized application software.  Two new product lines have recently been 
introduced.  The first, the Microarray system, prepares and analyzes DNA in 
a microchip format and is exclusively marketed on a technology access 
basis.  The second is a high-throughput, automated DNA sequencing 
instrument branded MegaBACETM 1000.  Both new product lines use matched 
fluorescence reagents and consumables being developed by the Company's 
strategic alliance partner, Amersham Pharmacia Biotech (Amersham).  The 
Company believes that these new offerings can accelerate the expansion of 
molecular biology techniques from research through to commercial 
applications.


Products:                                    Visualization Technique:

Gel and Blot Scanning Products

    Personal Densitometer SI     Staining, Radioactivity, Chemiluminescence

    PhosphorImager SI            Radioactivity

    Storm 860                    Fluorescence, Radioactivity, Chemifluorescence

    Storm 840                    Chemifluorescence, Radioactivity

    Storm 830                    Fluorescence, Radioactivity

    Storm 820                    Radioactivity

    FluorImager SI               Fluorescence, Chemifluorescence

    FluorImager 595              Fluorescence, Chemifluorescence

    BioLumin 960                 Fluorescence, Absorption

Microarray Systems

    Microarray Spotter           Fluorescence 

    Microarray Scanner           Fluorescence 

Sequencing Products

    MegaBACE 1000                Fluorescence 


Gel and Blot Scanner Product Family

Background

        Gel electrophoresis is the most widely used technique for the 
separation and analysis of biologically important macromolecules such as 
proteins and DNA.  Because of its versatility in separating molecules of 
vastly different sizes, virtually every molecular biology laboratory uses 
gel electrophoresis as one of its primary analytical techniques.  
Electrophoresis is the fundamental technology for DNA sequencing, gene 
mapping, DNA fingerprinting, and one- or two-dimensional protein 
separation.  Electrophoresis is usually performed in a porous matrix, or 
gel, in a slab format, which acts as a support for several samples, which 
are then separated in parallel.  Using this technique, charged molecules in 
solution separate by size as they migrate in an electric field.

        The Company's core business, gel and blot scanning products, employ 
several detection techniques to acquire and analyze data from gel 
electrophoresis and other two-dimensional molecular sample formats.  
Currently, these products are the Personal Densitometer R SI, the 
PhosphorImager R SI, the Storm R 820, 830, 840, and 860, the FluorImager R 
SI, and the FluorImager 595.  The BioLuminR 960 enables high-sensitivity 
quantitation of 96-well microplates.  The Company's confocal microscopes 
enable high resolution, three-dimensional imaging of cells and other 
biological specimens.  Most of the Company's instruments operate on 
multiple computer platforms and are networkable.  Proprietary software for 
image analysis and data reduction is included with each product.  Sales of 
gel imaging products accounted for approximately 77%, 92% and 87% of 
instrument sales in 1997, 1996 and 1995, respectively.  Sales of BioLumin 
and confocal microscopes accounted for 6%, 8% and 13% of instrument sales 
in 1997, 1996 and 1995, respectively.

PhosphorImager Systems

        The Company's PhosphorImager systems and associated storage phosphor 
screens have accounted for more than half of the Company's total sales 
since their introduction in 1989.  The PhosphorImager replaces the use of 
film and densitometry in traditional autoradiographic analysis by use of a 
storage phosphor screen to record the position of radioactive 
macromolecules in an electrophoresis gel or blot.  The PhosphorImager scans 
the screen with a laser beam, and accurately quantifies the radioactive 
energy emitted from the original sample.  The PhosphorImager SI has been 
sold by the Company since 1994, and its current selling price ranges from 
$25,000 to $40,000, depending on options and accessories.

        The Storm systems, which began shipping in the third quarter of 
1995, were designed to incorporate two non-radioactive detection modes as 
well as the radioactive capability used in the PhosphorImagers. These 
instruments give customers the ability to move to fluorescent analysis 
methods without giving up popular radioisotope techniques.  The Company 
currently offers four versions of Storm, the Storm 820, 830, 840, and 860.  
These instruments provide researchers the ability to use various labelling 
techniques ranging from storage phosphor technology alone, to a combination 
of storage phosphor, chemiluminescence and direct red and blue excited 
fluorescence.  The Storm 820, 830 and 840 are upgradable in the field to 
add additional detection capabilities.  The Storm instruments sell for 
$45,000 to $90,000, depending on options and accessories.

FluorImager Systems

        The Company sells two high-sensitivity fluorescence-only gel 
scanning instruments, designed to detect fluorescent labels as an 
alternative to radioactive labeling.  Use of fluorescence chemistry 
complements and, in some cases, substitutes for the use of radioactive 
labels, particularly in cases where safety and radioactive disposal are 
major concerns.  The Company believes, however, that radioactivity will 
continue to be widely used, particularly in the study of metabolic 
processes.  The FluorImager SI is designed to scan the results of a 
complete experiment in less than three minutes, and researchers may conduct 
their experiments in parallel and rapidly analyze them using the 
FluorImager SI.

        The FluorImager 595, using a dual-line laser, offers two-color 
imaging of samples and standards in a single lane, which improves accuracy 
and throughput.  The FluorImager instruments sell for $40,000 to $100,000, 
depending on options and accessories.

Densitometer

        A densitometer measures optical density by determining the amount of 
light absorbed by a film or stained gel.  The optical density of the bands 
on the film or stain in the gel is a measure of the quantity of the 
biological molecules under study.  The Personal Densitometer SI uses a 
laser light source and a proprietary optical system to capture a two-
dimensional image of a stained gel or a film exposed by autoradiography or 
chemiluminescence.  The Personal Densitometer SI is designed specifically 
for the individual researcher or small research group and sells for $15,000 
to $25,000, depending on options and accessories.

BioLumin 960 Microplate System

        Microplates are used for high-throughput assays in biomedical and 
pharmaceutical research.  A microplate is a multiple-well cassette that 
allows the parallel processing of large numbers of small-volume samples in 
a standardized format.  They have largely replaced test tubes and cuvettes 
for most life science applications.

        The BioLumin 960 microplate reader is the first commercial product 
resulting from Molecular Dynamics' acquisition of technology and assets 
from BioLumin Corporation in 1995, and combines absorbance and fluorescence 
detection in one instrument.  The BioLumin 960 works with the BioTrak* 
series of microplate assay reagents from Amersham Pharmacia Biotech, as 
well as other off-the-shelf reagents and protocols.  The Company began 
shipping the BioLumin 960 in the first half of 1996. The selling price of 
the BioLumin 960 ranges from $25,000 to $35,000, depending on options and 
accessories.



Microarray Systems

        A microarray consists of hundreds or thousands of DNA samples 
deposited or synthesized in small spots on the surface of a slide or 
other substrate.  Microarrays are powerful tools that help scientists 
understand the role of genes in human health, identify targets for drug 
development, and ultimately develop new diagnostics and therapeutics.

The Company's microarray platform, developed with matched reagents 
and consumables from Amersham Pharmacia Biotech, consists of an array 
spotter to create these high-density arrays, a laser fluorescence array 
scanner to read them, and a suite of software for downstream analysis.

While the system is being developed for commercial availability, the 
Company has made it available to selected pharmaceutical, biotechnology and 
genomics companies through a Microarray Technology Access Program (MTAP).  
These are collaborations that provide early access to the systems in 
exchange for a combination of an access fee, instrument purchases and 
feedback on the systems' performance that will be used in development of 
future generations of the systems.   The Company has entered into 11 such 
arrangements since December 1996 and anticipates that the program will 
continue during 1998.  Sales of Microarray systems under these agreements 
accounted for approximately 9% of instrument sales in 1997, and less than 
1% in 1996.  

DNA Sequencing Products

        The genome of an organism contains its genetic code, the blueprint 
for its cellular structures and activities.  The goal of the Human 
Genome Project is to "sequence,"or decode, the three billion elements 
of the genome  by 2005, a critical step in developing tools to use this 
information in the study of human biology and medicine.  So far, only 
about 2% of the human genome has been sequenced.  To meet the 2005 goal, 
the world's DNA sequencing laboratories require next-generation 
instrumentation that can increase their throughput and reduce costs.

        The Company's high-throughput DNA sequencing instrument, the 
MegaBACE 1000, was introduced in 1997 and achieves throughput several times 
that of instruments using slab gel electrophoresis.  The use of 96 parallel 
capillaries allows automation of previously manual steps to save time and 
labor costs.  Amersham Pharmacia Biotech provides integrated reagent 
chemistries that help optimize the system's performance.  Sales of the 
MegaBACE 1000 under the first phase of a three-phase introduction program 
accounted for approximately 8% of instrument sales in 1997.  

Proprietary Software Products

        The Company has invested significant resources in the development of 
proprietary software for all its product lines.  The MegaBACE software 
integrates sample log-in, instrument control and analysis of all 96 
capillaries operating in parallel on the MegaBACE 1000 DNA Sequencing 
system.  ImageQuaNTr, ImageQuaNT Tools, FluorSepr, and Fragment AnalysisT 
software provide cross platform solutions for interactive and semi-
automated analysis of electrophoretic separations, dot blots and slot 
blots.  The XperimentT software manages the acquisition and analysis of 
microassay data on the BioLumin instrument, while the ImageSpacer software 
delivers an integrated environment for 3-D quantitation and visualization 
of confocal microscopy data.

Sales and Marketing

        Molecular Dynamics has made a substantial investment in building a 
direct sales, service and technical support organization. Because the 
Company's products are technically sophisticated and buyers are often Ph.D. 
- -level researchers, scientifically qualified and highly trained sales 
personnel are required. Virtually all of the Company's sales personnel have 
degrees in the life sciences and have substantial experience in selling 
premium-priced capital instrumentation. The Company's marketing activities 
include product advertising and application notes where appropriate, and 
participation in trade shows and product seminars.

        The Company has 122 direct sales, marketing and service personnel, 
supported by an in-house staff of application specialists. U.S. sales, 
marketing and service are handled by 87 individuals located throughout the 
country. In Europe and the Pacific Rim, the Company has 35 direct sales, 
marketing and service personnel and 37 distributors. The Company moved its 
European headquarters from the United Kingdom to the Netherlands in 1995. 
This headquarters is responsible for support for the Company's subsidiaries 
in the U.K., Germany and France. The Netherlands subsidiary also selects 
and supports independent distributors throughout Europe and in the Middle 
East. Sales in the Pacific Rim and elsewhere are managed from the Company's 
Sunnyvale, California headquarters. The Company's wholly-owned subsidiary 
in Japan provides direct sales and support of its products in that country. 
Additionally, the Company sold its products through a wholly-owned 
subsidiary in Australia until March 1998, when the Company began using 
Amersham Pharmacia Biotech as a distributor in that country.  The Company 
operates through specialized distributors in the European countries where 
it does not have wholly-owned subsidiaries, as well as in India, Taiwan, 
Korea, China, Australia, New Zealand, Mexico and Hong Kong. Approximately 
$20,961,000, $21,584,000 and $19,224,000, or 38%, 44% and 49% of the 
Company's sales in 1997, 1996 and 1995, respectively, were to markets 
outside the United States. Foreign sales are denominated in both U.S. 
dollars and local currencies, and it is the Company's policy to hedge 
accounts receivable denominated in foreign currencies that result from 
foreign sales. The Company periodically reviews international prices for 
its products and makes appropriate adjustments to account for currency 
fluctuations.


Manufacturing

        The Company manufactures its own components and subassemblies only 
where it believes significant value can be added.  Accordingly, the Company 
focuses primarily on assembly of precision optical components and final 
assembly and test of components and assemblies made by outside vendors to 
the Company's specifications.  The Company's products are assembled from 
numerous components based on a wide variety of technologies, including 
laser optics, computers, printed circuit boards and software.  Cost savings 
in manufacturing are achieved through use of the same components in 
multiple instruments.  The Company believes its current manufacturing 
facilities are sufficient to support its expected level of operations 
through 1998.

        Certain components used in the Company's products, including the 
storage phosphor screens used with the PhosphorImager and the capillary 
arrays used with the MegaBACE 1000, are currently purchased from single 
sources.  The storage phosphor screens are manufactured by Eastman Kodak 
Company (Kodak).  Although such screens are commercially available from 
Kodak, the Company believes that the Company and Kodak, which uses the 
screens for medical imaging applications, are the only significant 
customers.  Any disruption or delay in the supply of screens by Kodak would 
have a material adverse effect on the Company.  The capillary arrays used 
by the MegaBACE 1000 are manufactured by Polymicro Technologies, Inc. 
(PTI).  Should there be a disruption or delay in the supply of capillary 
arrays from PTI, Molecular has sufficient raw materials, engineering and 
process documentation to continue manufacturing arrays to forecast for some 
time.  The Company has qualified a second vendor that can manufacture 
arrays, after a setup time.  Additional components, such as computers, 
lasers, optical elements and galvanometers are currently purchased in 
configurations specific to and integrated into the Company's products.  
While the Company believes that most of the components used in its products 
are available from alternate sources, any unanticipated interruption of the 
supply of these additional components or other supplies could require the 
Company to redesign its products.

        The Company manufactures its products to forecast rather than to 
outstanding orders, and products are typically shipped within 30 to 90 days 
of order receipt.  As a result, the Company does not generally carry a 
substantial backlog, and the amount of backlog at any particular date is 
generally not indicative of its future level of sales.  The amount of 
backlog and the timing of shipment of products are subject to variation, 
especially in connection with the introduction of new products, such as 
occurred with the introduction of the Company's Storm product in 1995.  In 
addition, delivery of components of unacceptable quality could delay 
shipment of the Company's products, or result in returns of products 
incorporating such components by customers, which could have a material 
adverse effect on the Company's business, financial condition or results of 
operations.  Products are typically warranted for one year.  At the end of 
that period, the Company offers additional warranty coverage.  Service on 
out-of-warranty instruments is invoiced on the basis of parts, labor and 
travel.  The Company's products are not subject to regulation by the U.S.  
Food and Drug Administration; however, the products are subject to 
Department of Commerce export controls and the European Union's unified 
import regulations.  The Company has experienced no material difficulties 
in obtaining necessary export licenses to date.

Product Development

        The Company pursues active development programs in the areas of new 
detection techniques, optical and electronic systems, and computer 
software.  The Company's development staff consisted of 86 people on 
December 31, 1997.

        In the fourth quarter of 1994, as part of a consortium led by 
Affymetrix, Inc., the Company was awarded funding from the Advanced 
Technology Program of the National Institute of Standards and Technology 
(NIST).  The two companies collaborate with researchers at several academic 
and research institutions in an effort to develop miniaturized DNA 
diagnostic systems.  The Company has received notification from NIST that 
funding has been authorized for the remaining term of the grant, which ends 
January 2000.  The two companies will receive up to $31 million in matching 
funds, to be divided 33% to the Company and 67% to Affymetrix, over the 
five years beginning in January 1995, for research and development in the 
field of DNA diagnostic devices, with a total shared project cost of $63 
million. The additional funding is allowing the Company to work toward 
developing new fluorescence detection technologies and DNA separation 
devices and to apply these to the expanding field of molecular genetics.  
In 1997, 1996 and 1995, the Company recognized credits to its expenses of 
approximately $2.1 million, $1.9 and $1.5 million, and reduced its 
capitalized software by $498,000, $337,000 and $134,000, respectively, 
representing support from the grant.

        In December 1997, the Company and Affymetrix announced the 
formation of the Genetic Analysis Technology ConsortiumT (GATCT), which 
was formed to provide a unified set of specifications for the design, 
processing, reading and analysis of DNA microarrays.  In connection with 
this agreement, the two companies also signed a non-exclusive, 
worldwide, royalty-bearing license granting Molecular Dynamics rights to 
certain Affymetrix patents for commercializing low and medium density 
DNA microarrays.  Under the terms of the patent license agreement, the 
Company paid Affymetrix an up-front license fee, and will pay operating 
fees for instruments if certain patents issue in the future, as well as 
royalties in the future associated with product sales.  In addition, 
Molecular Dynamics granted a license to Affymetrix under certain of its 
patents in the array reader field for commercialization of systems 
related to microarrays.

        The Company engages in several product development programs 
simultaneously, and prioritizes these programs to take advantage of the 
most significant market opportunities.  Accordingly, the Company may change 
its product development schedule to accelerate the introduction of products 
for which it perceives a higher market demand and to delay products 
currently under development. Research and development expenses were 
approximately $6,871,000, $6,628,000 and $5,533,000 during 1997, 1996 and 
1995, respectively, including a reduction in expenses of $2,069,000, 
$1,945,000 and $1,531,000, respectively, representing support from the 
Company's NIST grant. Expenses also exclude $778,000, $456,000 and $514,000 
of capitalized software costs in 1997, 1996 and 1995, respectively, after 
considering credits to capitalized software of $498,000, $337,000 and 
$134,000 in 1997, 1996 and 1995, respectively, representing support from 
the NIST grant.

        The Company and Amersham Pharmacia Biotech are developing systems 
for gene expression analysis using DNA microarrays.  By the end of 1997, 
the Company had entered into 11 agreements with genomics and 
pharmaceutical companies and academic institutions for early access to 
its microarray technologies. Under the terms of these agreements, 
participating companies and educational institutions provide funding and 
technical feedback in exchange for delivery of various generations of  
microarray systems and a period of exclusive access to the Company's 
technology. At the end of 1997, Molecular Dynamics had delivered multiple 
microarray systems.  Research and development expenses were reduced by 
$1.7 million and an immaterial amount in 1997 and 1996, respectively, 
from credits representing amortization of fees from clients 
participating in the Technology Access Program.  Molecular Dynamics and 
Amersham Pharmacia Biotech intend to pursue similar collaborations in 
the future, with companies and researchers who have need of this 
technology and the ability to fund its development prior to its release 
to the general market.

Patents and Proprietary Rights

        The Company holds patents on the utilization of 3-D reconstruction 
techniques of confocal images issued in the United States and Canada, with 
one patent pending in Japan. The Company has informed other suppliers of 
competitive confocal laser scanning microscopes that it believes these 
suppliers are violating Molecular Dynamics' U.S. patent. The Company 
currently has three licensees. In April 1996, the Company filed suit 
against Leica, Inc., one of several companies that the Company believes are 
infringing its U.S. patent. This suit is currently on-going and may result 
in substantial future legal expenses for the Company.

        The Company's patent portfolio includes 16 granted U.S. patents, 10 
U.S. patent applications on file, three granted foreign patents, and 14 
foreign patent applications on file. The Company actively seeks, where 
appropriate, intellectual property protection for its products and 
proprietary information by means of United States and foreign patents and 
trademarks. In addition, the Company relies upon trade secrets and 
contractual arrangements to protect certain of its proprietary information 
and products.

        The Company is a party to an agreement with Fuji Photo Film Co., 
Ltd. ("Fuji"), pursuant to which the Company received a license to certain 
patents held by Fuji that affect the Company's PhosphorImager product line.  
In addition, the Company obtained a nonexclusive license to certain patents 
for all markets outside Japan in exchange for an ongoing royalty on the 
sales price of all current and future products using certain storage 
phosphor technology.  The terms of this licensing agreement were 
renegotiated in 1997, permitting PhosphorImager products to be sold in 
Japan.

        The Company also relies on trade secrets and proprietary know-how.  
There can be no assurance that the trade secret or proprietary nature of 
such information will not be wrongfully breached by employees, consultants, 
advisors or others, or that the Company's trade secrets or proprietary 
know-how will not otherwise become known or be independently developed by 
competitors in such a manner that the Company has no practical recourse.

        In December 1994, the Company entered into an agreement with 
BioLumin Corporation (BioLumin), in order to allow it to pursue the 
development of technology developed by BioLumin.  Under the terms of this 
agreement, the Company acquired an option for $1 million to purchase 
BioLumin's technology and assets under certain conditions.  The Company 
exercised this option in 1995, and paid an additional amount of $1.1 
million.  The total amount was recorded as acquired in-process research and 
development for the year ended December 31, 1995. The agreement with 
BioLumin also provides for royalty payments to be made by the Company on 
sales of the product. In 1997 and 1996, the Company recorded approximately 
$89,000 and an immaterial amount, respectively, for these royalties.

        The Company has entered into exclusive license agreements for two 
patents with the University of California at Berkeley, pursuant to which it 
acquired certain rights to design, manufacture and sell products based on 
technology relating to confocal fluorescence gel scanning.  The Company 
will pay a royalty under these licenses based on sales of products 
incorporating the licensed technology.  The first patent covered by this 
agreement was issued in February 1992, and the second was issued in 
December 1993.  Because the technology was developed in part through the 
use of federal government funds, the Company's licenses of such patent 
rights may be subject to certain rights of the United States governmental 
agencies to use the technology.

        The Company is a party to an agreement with Dr. Bala S. Manian, a 
co-founder of the Company, pursuant to which it received certain licenses 
to technology developed by Dr. Manian.

        In conjunction with the GATC agreement with Affymetrix, the Company 
has a non-exclusive license to certain Affymetrix patents relevant to DNA 
microarrays, and the Company has granted Affymetrix rights to certain of 
its patents. See Product Development  for more information.

        In September 1997, the Company entered into a software license 
agreement with Incyte Pharmaceuticals, Inc. to secure access to Incyte's 
LifeArrayT gene expression database management software.  LifeArray 
software allows scientists to view, manage, and compare data from thousands 
of microarray experiments and detect the meaningful changes in gene 
expression patterns.


Competition

        The market for the Company's products is generally highly 
competitive, and Molecular Dynamics expects competition to increase.  The 
Company competes with many other instrumentation companies for the 
researcher's allocation of capital funds, including those which do not 
manufacture  image-scanning, DNA sequencing or microarray products directly 
competitive with those of the Company.  Many of these companies have 
significantly greater research and development, marketing and financial 
resources than the Company, and therefore represent significant 
competition.  The Company believes that the primary competitive factors in 
the market for the Company's products are breadth of applications, ease of 
use, productivity, quantitative accuracy and price.

        The Company's densitometer products compete with products offered by 
Bio-Rad Laboratories (Bio-Rad) and Shimadzu Scientific Instruments, Inc., 
among others.  The Company believes that it competes favorably with the 
above companies' products.  In addition, many small companies offer 
inexpensive document scanners and camera systems with custom image analysis 
software for customers who require a lower level of quantitative accuracy 
than provided by the Company's products.

        Until early 1994, the Company's direct competition for the 
PhosphorImager was relatively limited.  Fuji offers a product competitive 
to the Company's PhosphorImager SI and Storm.  Before 1997, pursuant to a 
licensing agreement with Fuji, the Company did not sell its PhosphorImager 
products in Japan.  This licensing agreement was renegotiated in 1997, and 
these products are now sold in Japan, in competition with Fuji.  The 
Company believes that its products have certain advantages with respect to 
performance, additional imaging technologies, price and size of the system 
compared to the Fuji product.  Bio-Rad has offered a competitive product 
since 1993.  The Company believes that the PhosphorImager SI and Storm have 
certain advantages with respect to performance and additional imaging 
technologies compared to the Bio-Rad product.  Each of these companies is 
substantially larger than the Company and there can be no assurance that 
the Company will be able to compete successfully against them.

        The Company believes that the FluorImager was the first general 
purpose gel and blot scanning instrument to use fluorescence as a detection 
technique.  Market acceptance of the FluorImager depends upon the 
willingness of customers to shift from the use of radioactivity to 
fluorescence.  The Company introduced the Storm product line in order to 
facilitate the shift to fluorescent detection while simultaneously 
providing detection of radioactivity. The Company is experiencing 
competition from Hitachi Instruments, Inc., which sells a fluorescence 
scanner featuring rapid multi-color scanning and a large scan area.

        The Company's BioLumin 960 product competes with products offered by 
many manufacturers, including Perseptive Biosystems, Dynatech, BioTek and 
Molecular Devices.  The Company believes that its product competes 
favorably with products of these companies due to the combination of 
fluorescence and absorbance detection methods in one instrument.

        The MegaBACE 1000 competes with the PrismT DNA Sequencers 
manufactured by the Applied Biosystems Division of Perkin-Elmer, Inc., 
which dominates the market for fluorescent DNA sequencing instruments.  The 
Company believes that the MegaBACE 1000 competes favorably with the 
competitive products in the areas of automation and rate of throughput.  
Perkin-Elmer is substantially larger than the Company and there can be no 
assurance that the Company will be able to compete successfully against it.

        Currently, the Company is not aware of any companies other than 
Molecular Dynamics that are selling microarray spotter-scanner systems.  
Affymetrix, Inc. sells standard and custom high-density Genechipr arrays, 
which are manufactured by Affymetrix using a high resolution 
photolithographic process adapted from the semiconductor industry.  
Hewlett-Packard Company manufactures microarray scanners, for analysis of 
the Genechip.  Affymetrix, Amersham Pharmacia Biotech and Hewlett-Packard 
Company all sell these scanners.  General Scanning, Inc. manufactures and 
sells a microarray scanner.  Incyte Pharmaceuticals, Inc. provides customer 
services that return gene expression information to its pharmaceutical 
customers. 

Agreements with Amersham Pharmacia Biotech

        In April 1994, the Company concluded a series of agreements with 
Amersham Pharmacia Biotech whereby Molecular Dynamics would take 
responsibility for development and sales of certain instrumentation, and 
Amersham would develop and sell associated reagents. Development costs and 
profits of these reagent and instrument sales will be shared between the 
two companies. Products that are currently included in the profit-sharing 
arrangement are the MegaBACE 1000 and the Microarray Technology Access 
Program.  Amersham has acquired approximately one million shares of the 
Company's capital stock on the open market as part of this agreement.

Human Resources

        As of December 28, 1997, the Company had 286 full-time employees, of 
which 86 were in product development, 55 were in manufacturing, 122 were in 
sales and marketing and 23 were in administration.  The Company's success 
will depend in part on its continued ability to attract and retain high-
quality employees.  The Company considers its relations with employees to 
be good.

EXECUTIVE OFFICERS OF THE REGISTRANT 

                  The current executive officers of the Company and their 
respective ages and positions are as follows: 
<TABLE> 
<CAPTION> 
       Name          Age                         Position
- -------------------  ----  ----------------------------------------------------
<S>                  <C>   <C>
James M. Schlater     61   Chairman of the Board of Directors

Jay Flatley           45   President, Chief Executive Officer, Chief Operating
                           Officer, Acting Chief Financial Officer and Director

David L. Barker       56   Vice President, Scientific Development

Bud L. Bromley        47   Sr. Vice President, Sales and Marketing

Bruce K. Leisz        46   Vice President, Operations

Mark J. Sutherland    41   Vice President, Microarray Business Segment
</TABLE> 

        Officers are elected by and serve at the discretion of the Board of 
Directors.

        Mr. Schlater, a co-founder of the Company, has served as a director 
of the Company since September 1987, and was appointed Chairman of the 
Board of Directors in August 1991.  From August 1991 to July 1994, he 
served as Chief Executive Officer of the Company.  From September 1987 to 
August 1991, he served as President and Chief Financial Officer.  Prior to 
co-founding the Company, Mr. Schlater co-founded Applied Biosystems, Inc., 
a bioanalytical research instrumentation company, and served as a Senior 
Vice President responsible for sales and marketing from October 1981 to 
January 1987.

        Mr. Flatley, a co-founder of the Company, joined the Company as Vice 
President of Operations in September 1987 and served in that position until 
January 1990, when he was appointed Senior Vice President and Chief 
Operating Officer.  He was appointed President of the Company in August 
1991 and Chief Executive Officer of the Company in July 1994 and has served 
as Acting Chief Financial Officer since October 28, 1994.  He has served as 
a member of the Company's Board of Directors since March 1992.  Mr. Flatley 
holds a B.A. in Economics from Claremont Men's College and B.S. and M.S. 
degrees in Industrial Engineering from Stanford University.

        Dr. Barker joined the Company as Director of Biochemical Research in 
February 1988 and was appointed Vice President, Scientific Development in 
March 1991.  From May 1985 to January 1988, Dr. Barker was employed as 
Scientific Sales Consultant for Protein Databases, Inc., a protein 
separation and analysis company.  Dr. Barker holds a B.S. in Chemistry from 
the California Institute of Technology and a Ph.D. in Biochemistry from 
Brandeis University, and he was a Postdoctoral Research Fellow at Harvard 
Medical School from 1969 to 1971.

        Mr. Bromley joined the Company in November 1995 as Senior Vice 
President, Sales and Marketing.  Prior to working for the Company, Mr. 
Bromley held a variety of positions with Hewlett-Packard Company (HP) in 
the Chemical Analysis Group. From November 1994, Mr. Bromley was the 
Manager of Information Architecture, HP Chemical Analysis Group Sales and 
Marketing.  From July 1993 to November 1994 he was Worldwide Bioscience 
Sales and Marketing Manager.  From November 1988 to July 1993 he was Global 
Accounts Marketing Manager, Chemical Analysis Group.  Mr. Bromley holds a 
B.S. in Natural Sciences with a Chemistry concentration from Mercer 
University.

        Mr. Leisz joined the Company in February 1988 as Director of 
Manufacturing and was appointed Vice President, Manufacturing in January 
1990.  In February 1995, Mr. Leisz was appointed Vice President of 
Operations.  From April 1983 to February 1988, Mr. Leisz served as Vice 
President, Manufacturing of Ridge Computers, a manufacturer of RISC-based 
computers.  Mr. Leisz holds a B.S. in Mechanical Engineering and an M.B.A. 
from the University of California at Berkeley.

        Mr. Sutherland joined the Company in August 1988 as Asia/Pacific 
Sales Manager and in 1994 was appointed Vice President, Strategic Programs.  
In June 1997, he was appointed Vice President, Microarray Business Segment.  
Mr. Sutherland holds a B.S. in Chemistry from Stanford University.


Item 2.  Properties

        The Company leases approximately 83,000 square feet in Sunnyvale, 
California, under a lease expiring January 31, 2001. The Company also 
leases sales offices in the United Kingdom, Germany, France, Japan and 
Australia, and an administrative office in the Netherlands.

Item 3. Legal Proceedings

        The Company owns U.S. Patent No. 34,214, which relates to systems 
used for generating 3-D images from confocal microscopes. The Company 
asserted this patent against Leica, Inc. in a patent infringement suit 
filed on April 11, 1996, in federal district court, Northern California, 
Molecular Dynamics, Inc. v. Leica, Inc. C96-20280 RMW (PVT).  This suit is 
currently ongoing and may result in future legal expenses for the Company.  
Fact discovery is complete, and the expert discovery process is ongoing.  A 
trial date of November 9, 1998 has been scheduled.

        On November 18, 1996, the Company filed a complaint against a former 
employee and DenOptix, Inc. The complaint, filed in the California Superior 
Court for Santa Clara County, sought damages and injunctive relief for 
breach of contract and unfair competition based upon improper use of the 
Company's information and property in developing a competing instrument. 
Molecular Dynamics, Inc. v. DenOptix, Inc. CV762 197.  This suit was 
satisfactorily resolved in 1997 through a confidential settlement agreement 
whereby the Company acquired certain rights and consideration, and the 
action was thereafter dismissed.  

        On March 13, 1998, Molecular Dynamics, Amersham Pharmacia Biotech 
UK Limited and Amersham Life Science Inc. were served with a complaint 
brought by the Perkin-Elmer Corporation, PE Applied Biosystems Division 
("Applied Biosystems") alleging willful infringement by the Company of 
two United States Patents owned by Perkin-Elmer and seeking a 
declaratory judgment that either Applied Biosystems does not infringe a 
United States patent exclusively licensed to Amersham Pharmacia Biotech, 
or such patent is invalid.  This alleged infringement relates to 
Molecular Dynamics' MegaBACE 1000 DNA Sequencing Systems and FluorImager 
595 Imaging Systems.  Applied Biosystems is seeking injunctive relief as 
well as a claim for damages regarding the alleged infringement, along 
with attorneys' fees.  No trial date has been set, and no response to 
the complaint has yet been filed.  The complaint was filed in United 
States District Court, Northern District of California.  Although 
Management believes that the ultimate disposition of this matter will 
not materially affect the financial position, results of operations or 
liquidity of the Company, significant legal expenses could be incurred 
relative to such lawsuit.


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

        No matters were submitted to a vote of security holders during the 
fourth quarter of the fiscal year ended December 28, 1997.

<PAGE>
        PART II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS. 

                  Since February 5, 1993, the Company's common stock, par value
$.01 has been traded on the Nasdaq National Market under the symbol MDYN. The
following table sets forth the high and low closing sales price on the National
Market system for fiscal years 1996 and 1997. The approximate number of record
holders of the Company's common stock as of March 18, 1998 was 133. 

                                        High      Low
                                      --------  --------

1st Quarter 1996                        $8.00     $5.50
2nd Quarter 1996                         8.75      4.86
3rd Quarter 1996                         7.63      5.25
4th Quarter 1996                        14.63      7.38

1st Quarter 1997                       $16.75    $10.63
2nd Quarter 1997                        17.50     10.50
3rd Quarter 1997                        28.13     12.63
4th Quarter 1997                        27.38     13.63

Dividend Policy

        The Company has not paid any cash dividends since its inception and 
does not anticipate paying cash dividends in the foreseeable future.

<PAGE>
ITEM 6            SELECTED FINANCIAL DATA. 
<TABLE>
<CAPTION>
(In thousands, except per share amounts)
                                             Years Ended December 31,
                              -------------------------------------------------
                                1997      1996      1995      1994       1993
                              --------- --------- --------- --------- ---------
<S>                           <C>       <C>       <C>       <C>       <C>
STATEMENT OF OPERATIONS DATA: 
Sales and other revenue        $55,715   $49,378   $38,938   $33,860   $38,084
Cost of sales and other
   revenue                      25,456    21,471    17,532    15,919    16,684
                              --------- --------- --------- --------- ---------
Gross margin                    30,259    27,907    21,406    17,941    21,400
                              --------- --------- --------- --------- ---------
Operating expenses:
   Research and development      6,871     6,628     5,533     4,953     4,025
   Sales and marketing          14,351    14,662    14,017    12,463    10,828
   General and administrative    4,697     3,723     3,728     3,642     2,399
   Acquired in-process
     research and development       --        --     2,082        --        --
   Litigation settlement            --        --        --     1,975        --
                              --------- --------- --------- --------- ---------
Operating income (loss)          4,340     2,894    (3,954)   (5,092)    4,148
Interest income                  1,106       844       918     1,032       898
Other income                        77        49        69        72        49
                              --------- --------- --------- --------- ---------
Income (loss) before income
   taxes                         5,523     3,787    (2,967)   (3,988)    5,095
Income taxes                       663       379        20       716     1,119
                              --------- --------- --------- --------- ---------
Net income (loss)               $4,860    $3,408   ($2,987)  ($4,704)   $3,976
                              ========= ========= ========= ========= =========
Earnings (loss) per share (1):
  Basic                          $0.48     $0.34    ($0.30)   ($0.47)    $0.42
                              ========= ========= ========= ========= =========
  Diluted                        $0.43     $0.32    ($0.30)   ($0.47)    $0.39
                              ========= ========= ========= ========= =========
Shares used to compute
   earnings (loss) per share:
  Basic                         10,181    10,058    10,095    10,056     9,524
                              ========= ========= ========= ========= =========
  Diluted                       11,368    10,715    10,095    10,056    10,295
                              ========= ========= ========= ========= =========
<CAPTION> 
                                                 December 31,
                              -------------------------------------------------
                                1997      1996      1995      1994       1993
                              --------- --------- --------- --------- ---------
<S>                           <C>       <C>       <C>       <C>       <C>
BALANCE SHEET DATA: 
Working capital                $34,351   $27,889   $28,568   $30,237   $36,707
Total assets                    59,055    46,043    42,745    45,067    47,032
Stockholders' equity            41,918    33,514    33,645    36,454    41,418

(1)  The earnings (loss) per share amounts for years prior to 1997 have been restated
     required to comply with Statement of Financial Accounting Standards No. 128, 
    "Earnings per Share." See Note 1 of Notes to Consolidated Financial Statements.
</TABLE> 

<PAGE>
Item 7.         Management's Discussion and Analysis of Financial 
Condition and Results of Operations

The following discussion should be read in conjunction with the 
consolidated financial statements contained herein.  Except for the 
historical information contained herein, the matters discussed in this 
document are forward-looking statements that involve certain risks and 
uncertainties, including the risks and uncertainties set forth below. See 
"Factors That May Affect Future Results."

RESULTS OF OPERATIONS 

                  The following table sets forth the percentage of Sales and 
other revenue for certain items in the Company's consolidated statements of 
operations for the periods indicated: 

<TABLE> 
<CAPTION> 
                                                Years Ended December 31,
                                          ---------------------------------
                                            1997        1996        1995
                                          ---------   ---------   ---------
<S>                                       <C>         <C>         <C>
Sales and other revenue                      100.0%      100.0%      100.0%
Gross margin                                  54.3%       56.5%       55.0%
Operating expenses:
  Research and development                    12.3%       13.4%       14.2%
  Sales and marketing                         25.8%       29.7%       36.0%
  General and administrative                   8.4%        7.5%        9.6%
  Acquired in-process research and
     development                                --          --         5.3%
Operating income (loss)                        7.8%        5.9%      -10.2%
Income (loss) before income taxes              9.9%        7.7%       -7.6%
Net income (loss)                              8.7%        6.9%       -7.7%
</TABLE>

1997 Compared to 1996

        Sales and Other Revenue.  The Company's Sales and other revenue 
increased by 13% to $55.7 million in 1997 from $49.4 million in 1996. The 
increase resulted from recognition of revenue pursuant to agreements for 
early access to systems and technology for the analysis of DNA in 
microarrays and an increase in sales due to the introduction of 
MegaBACET1000 high-throughput sequencing instruments to test-site 
customers.  The increase occurred primarily in the United States, offset by 
small declines in Europe, Japan and Australia.  The Company's Gel and Blot 
Scanner sales, including related screens and cassettes, remained nearly 
equal in dollars to those in 1996, and represented 70% of sales during 
1997, compared with 81% in 1996. The Gel and Blot Scanner products include 
the Company's PhosphorImager, Storm, FluorImager, Densitometer, and 
BioLumin instruments.  The percentage decrease from the prior year is due 
to increases in sales of the Company's other products.  International sales 
constituted 38% of sales in 1997 compared to 44% in 1996.  The Company 
sells its products through direct sales operations in North America, the 
United Kingdom, Germany, France, Japan and Australia. Changes in foreign 
currency exchange rates from the prior period had the effect of decreasing 
the Company's sales by approximately 2.4% for 1997 compared to 1996.

        The Company believes that a majority of its sales are generated from 
research groups that depend on grants or funding from governmental 
agencies, and the remaining portion of the Company's sales is derived 
primarily from genomics, biotechnology, pharmaceutical, and chemical 
companies.  The Company anticipates that an increased percentage of its 
business will come from pharmaceutical and genomics companies in the 
future.  The Company's revenues and the sales cycle for the Company's 
products are directly affected by the availability, timing, and amount of 
funding for these organizations.

        Gross Margins.  Gross margins were 54.3% and 56.5% in 1997 and 1996, 
respectively.  The decrease in gross margins is primarily due to the 
increase in the percentage of Sales and other revenue contributed by new 
technologies and instruments, which typically contribute lower gross 
margins early in product life cycles, and a lower proportion of Sales and 
other revenue contributed by the Company's Gel and Blot Scanner products, 
which have higher gross margins.

        Research and Development Expense.  Research and development expense 
decreased as a percentage of sales to 12.3% in 1997 from 13.4% in 1996.  In 
absolute dollars, research and development expenses increased from $6.6 
million in 1996 to $6.9 million in 1997 as a result of the expansion of a 
number of development programs, offset by credits to expense representing 
recognition of fees from clients participating in the Company's program for 
early access to technology for the analysis of DNA in microarrays, and 
support from the Company's NIST and other grants.  Research and development 
expenses for 1997 have been reduced by $1.9 million of credits representing 
amortization of fees from clients participating in the Company's technology 
access program.  Comparable reductions were insignificant in 1996.  Also, 
research and development expenses for 1997 and 1996 have been reduced by 
$2.1 million and $1.9 million, respectively, of credits representing 
support from the NIST grant.  Expenses in 1997 and 1996 also exclude 
capitalized software development costs of $778,000 and $456,000, 
respectively, after considering credits to capitalized software of $498,000 
and $337,000 in 1997 and 1996, respectively, representing support from the 
NIST grant.

        Sales and Marketing Expense.  Sales and marketing expense decreased 
as a percentage of sales to 25.8% in 1997 from 29.7% in 1996, primarily due 
to increased  Sales and other revenues.  In absolute dollars, sales and 
marketing expense decreased to $14.4 million in 1997 from $14.7 million in 
1996 primarily because of changes in resource allocations within the 
Company's sales and marketing departments, which resulted in improved 
efficiency.  Changes in foreign currency exchange rates had the effect of 
decreasing the Company's sales and marketing expenses by approximately 3% 
for 1997 compared to 1996.

        General and Administrative Expense.  General and administrative 
expense increased as a percentage of sales to 8.4% in 1997 from 7.5% in 
1996, primarily as a result of legal expenses associated with patent and 
general litigation issues, and other smaller changes in general corporate 
expenditures.

        Interest and Other Income, Net.  Interest and other income, net, 
increased to $1.2 million in 1997 from $0.9 million in 1996.  This increase 
resulted primarily from higher average cash and securities available-for-
sale balances and higher interest rates earned in 1997.

        Provision for Income Taxes.  The Company's income tax expense was 
$663,000 and $379,000 in 1997 and 1996, respectively. In 1997, the 
Company's effective tax rate of 12%, compared to a rate of 10% for 1996.  
The increased tax rate in 1997 is attributable to the complete utilization 
of federal, state and foreign net operating loss carryovers, (without 
regard to amounts attributable to the exercise of stock options, for which 
related tax benefits were credited to equity), during the year, while the 
lower tax rate in 1996 is attributable to usage of net operating loss 
carryovers.  The income tax expense consists of state and federal 
alternative minimum taxes, state minimum franchise taxes, as well as 
foreign taxes.

        Earnings (Loss) Per Share. Basic earnings per share were $0.48 in 
1997, compared to $0.34 in 1996.  Diluted earnings per share were $0.43 in 
1997, compared to $0.32 in 1996.  This increase is due to increases in 
revenues, partially offset by increases in normal operating expenses. In 
1997, the Financial Accounting Standards Board (FASB) issued Statement of 
Financial Accounting Standards (SFAS) No. 128, Earnings per Share.  See 
Note 1 to the financial statements for a description of SFAS No. 128.

1996 Compared to 1995

        Sales and Other Revenue.  The Company's Sales and other revenue 
increased by 27% to $49.4 million in 1996 from $38.9 million in 1995.  This 
increase resulted primarily from increased sales in the United States and 
the Pacific Rim, offset by a slight decline in sales in Europe caused by 
decreased sales through European distributors. Sales of the PhosphorImager 
product family, including the Storm products and related screens and 
cassettes, contributed to the increased sales and represented 63% of sales 
during 1996, compared with 48% in 1995.  International sales constituted 
44% of sales in 1996 compared to 49% in 1995.  Changes in foreign currency 
exchange rates from the prior period had the effect of decreasing the 
Company's sales by 3% for the year ended December 31, 1996.

        Gross Margins.  Gross margins were 56.5% and 55.0% in 1996 and 1995, 
respectively.  The increase in gross margins is primarily due to the 
increase in the percentage of revenue contributed by instruments compared 
to lower margin service and accessories, and to an increase in sales of the 
Storm products, which have higher gross margins than certain of the 
Company's other products.

        Research and Development Expense.  Research and development expense 
decreased as a percentage of sales from 14.2% in 1995 to 13.4% in 1996.  In 
absolute dollars, research and development expenses increased to $6.6 
million in 1996 from $5.5 million in 1995 as a result of the expansion of a 
number of major development programs, partially offset by support from the 
Company's NIST grant.  Research and development expenses for 1996 and 1995 
have been reduced by $1.9 million and $1.5 million, respectively, of 
credits representing support from the NIST grant.  Expenses in 1996 and 
1995 also exclude capitalized software development costs of $456,000 and 
$514,000, respectively, after considering credits to capitalized software 
of $337,000 and $134,000  in 1996 and 1995, respectively, representing 
support from the NIST grant.

        Sales and Marketing Expense.  Sales and marketing expense decreased 
as a percentage of sales from 36.0% in 1995 to 29.7% in 1996.  In absolute 
dollars, sales and marketing expense increased to $14.7 million in 1996 
from $14.0 million in 1995 primarily because of promotional, sales and 
marketing activities relating to the Company's Storm products. 

        General and Administrative Expense.  General and administrative 
expense decreased as a percentage of sales from 9.6% in 1995 to 7.5% in 
1996.  In absolute dollars, general and administrative expense remained at 
$3.7 million in both years, as a result of continuing cost control 
measures.

        Acquired In-process Research and Development. The Company determined 
that the technology acquired from BioLumin, Incorporated (BioLumin) in 1995 
was in-process research and development, and therefore the amount of 
$2,082,000 allocated to the technology was expensed as acquired in-process 
research and development in the accompanying consolidated statement of 
operations for 1995. 

        Interest and Other Income, Net.  Interest and other income, net, 
decreased to $893,000 in 1996 from $987,000 in 1995.  This decrease 
resulted primarily from lower average cash balances in 1996.

        Provision for Income Taxes.  The Company's income tax expense was 
$379,000 and $20,000 in 1996 and 1995, respectively. In 1996, the Company 
utilized NOL carryovers, but was subject to federal and state alternative 
minimum taxes and foreign taxes. The relatively minor amount of income tax 
expense recognized in 1995 relates to foreign and state income taxes.

        Earnings (Loss) Per Share. Basic earnings per share were $0.34 in 
1996, compared to a net loss per share of $0.30 in 1995.  Diluted earnings 
per share were $0.32 in 1996, compared to a net loss per share of $0.30 in 
1995.  The increase in basic earnings per share is due to increases in 
revenues, only partially offset by increases in normal operating expenses, 
and the fact that approximately $0.21 of the 1995 loss per share was due to 
the acquisition of in-process research and development of BioLumin.

Factors That May Affect Future Results

        The Company believes that in the future, its results of operations 
in a quarterly period may be impacted by factors such as delays in the 
shipment of new products, difficulty in acquiring critical product 
components of acceptable quality and in required quantity, decreases or 
delays in the signing of Microarray Technology Access Agreements, increased 
competition, the effect of announcements of new competitive products, 
adverse changes in economic conditions in any of the countries in which the 
Company does business, a slower growth rate in the Company's target 
markets, effects of Year 2000 issues (see Year 2000), order deferrals in 
anticipation of new product releases, decisions to invest in research and 
development programs, legal expenses, reduction or delay of government and 
private sector funding of research activities, the Company's profit-sharing 
agreements with Amersham Pharmacia Biotech, the Company's ability to keep 
pace with new technological developments, or lack of market acceptance of 
new products.  Specifically, the Company has experienced delays with 
respect to the ramp-up of shipments of its MegaBACE product in the fourth 
quarter of 1997 due to unforeseen difficulties in adapting the customers' 
sample preparation processes to a capillary-based technology.  The 
challenges associated with integration of a system as complex as MegaBACE 
into existing user environments can be expected to continue through at 
least the first half of 1998 and may cause delays in transition to full 
market availability.   Additionally, with a significant portion of net 
sales and net income contributed by international operations, fluctuations 
of the U.S. dollar against foreign currencies could affect the Company's 
consolidated results of operations and financial condition in a particular 
quarter.  There can be no assurance that the Company will be able to grow 
in future periods or that it will be profitable on a quarterly or annual 
basis.

        The storage phosphor screens used with the Company's PhosphorImager 
and Storm products are currently purchased from a single source.  The 
storage phosphor screens are manufactured by Eastman Kodak Company (Kodak).  
Although these screens are available commercially from Kodak, the Company 
believes that the Company and Kodak, which uses the screens for medical 
imaging applications, are the only significant customers.  Any disruption 
or delay in the supply of screens by Kodak would have a material adverse 
effect on the Company.  The capillary arrays used by the MegaBACE 1000 are 
manufactured by Polymicro Technologies, Inc. (PTI).  Should there be a 
disruption or delay in the supply of capillary arrays from PTI, Molecular 
has sufficient raw materials, engineering and process documentation to 
continue manufacturing arrays to forecast for some time.  The Company has 
qualified a second vendor that can manufacture arrays, after a setup time.

        The Company's future earnings and stock price may be subject to 
significant volatility, particularly on a quarterly basis.  Any shortfall 
in revenues or earnings from levels expected by securities analysts, such 
as the shortfall with respect to the fourth quarter of 1997, could have a 
significant adverse effect on the trading price of the Company's common 
stock.  The Company typically recognizes a substantial portion of sales 
near the end of a quarter.  Therefore, as occurred with respect to the 
fourth quarter of 1997, the Company may not become aware of such shortfalls 
until late in a quarter, which may result in an adverse effect on the 
trading price of the Company's common stock.  

        The Asia-Pacific region is currently experiencing currency, economic 
and political instability. To date, the Company's results of operations 
have not experienced any significant adverse effects from this instability. 
However, in late 1997, the Company's customers experienced a delay in 
funding which resulted in a delay in orders.  If the situation continues, 
additional customers may delay or decide against purchases of the Company's 
products. The Company cannot predict whether such a decrease in demand will 
materialize and if it does, whether it will have an adverse material effect 
on the Company's results of operations.

Liquidity and Capital Resources

        The Company has financed its operations to date primarily through 
internally generated funds and the sale of equity securities.  At December 
31, 1997 and 1996, cash and securities available-for-sale balances were 
$20.1 million and $20.6 million, respectively, and working capital was 
$34.4 million and $27.4 million, respectively. For the years ended December 
31, 1997 and 1996, cash generated from operations was $0.5 million and $7.8 
million, respectively. These changes are substantially due to profitable 
operations and increases in current liabilities related to unearned revenue 
for Technology Access Agreements and deferred service revenue, partially 
offset by increased accounts receivable under the Company's Microarray 
Technology Access agreements, inventory purchases in anticipation of future 
shipments, especially related to the MegaBACE products, and a large 
proportion of sales occurring near the end of the fourth quarter.  The 
Company spent $3.5 million, $1.5 million, and $1.2 million in connection 
with the acquisition of equipment and leasehold improvements during 1997, 
1996 and 1995, respectively.

        The Company enters into foreign exchange contracts to hedge 
receivables denominated in foreign currencies. The Company's forward 
exchange hedge contracts require the Company to exchange foreign currencies 
for U.S. dollars at rates agreed upon at the inception of the contracts. As 
of December 31, 1997, the Company had approximately $2.6 million of forward 
exchange contracts outstanding, consisting primarily of Japanese yen, 
German marks, French francs and British pounds, to hedge firm commitments 
relating to certain of its foreign receivables. The contracts mature at 
various dates through June 1998.

        During 1996, the Company instituted a factoring program in order to 
shorten the time between customer shipments and receipt of payment.  Since 
the Company retains ultimate responsibility for collection of its Japan 
accounts, amounts paid by the factoring entity are classified as 
liabilities until the customer pays the factoring entity. 

        The Company's principal commitments as of December 31, 1997 consist 
of obligations under operating leases for facilities and equipment.  Long-
term cash requirements, other than normal operating expenses, are 
anticipated for development of new products, enhancement of existing 
products, financing continued growth, and possible acquisition of products, 
technologies, or businesses complementary to the Company's business.  The 
Company believes its cash and securities available-for-sale will be 
sufficient to satisfy its working capital requirements for at least the 
next twelve months.

New Accounting Pronouncements

        In June 1997, the FASB issued SFAS No. 130, Reporting 
Comprehensive Income which will be effective for financial statements 
for periods beginning after December 15, 1997, and establishes standards 
for reporting and display of comprehensive income and its components in 
a full set of general purpose financial statements. Earlier application 
is permitted. The Company will make the required reporting of 
comprehensive income in its consolidated financial statements for the 
fiscal year ending December 31, 1998.

        In June 1997, the FASB issued SFAS No. 131, Disclosures about 
Segments of a Business Enterprise which will be effective for financial 
statements for periods beginning after December 15, 1997, and 
establishes standards for disclosures about segments of an enterprise. 
Earlier application is encouraged. The Company will make the required 
disclosures under SFAS No. 131 in its consolidated financial statements 
for the fiscal year ending December 31, 1998.  The Company has not yet 
assessed the future impact of the disclosures required by SFAS No. 131 
on its financial statements.

Year 2000

The Company is reviewing its internal computer systems and product 
offerings to ensure these systems and offerings are adequately able to 
address the issues expected to arise in connection with the Year 2000.  
These issues include the possibility that software which does not have 
the capacity to recognize four digits in a date field may no longer 
function properly when use of that date becomes necessary.

The Company expects to implement the systems and programming 
changes necessary to address Year 2000 issues on an enterprise-wide 
basis and is currently reviewing the cost of such actions.  A 
significant proportion of these costs are not expected to be incremental 
costs to the Company, but will represent redeployment of existing 
Company resources.  The Company expects such modifications to its 
products and internal systems will be made on a timely basis, and 
presently believes that, with modifications to existing software or 
converting to new software, the Year 2000 issue will not pose 
significant operational problems for the Company's computer systems; 
however, there can be no assurance there will not be a delay in, or 
increased costs associated with, the implementation of such changes, and 
the Company's inability to implement such changes could have an adverse 
effect on future results of operations.

The Company has not fully determined the extent to which it  may 
be impacted by third parties' systems, which may not be Year 2000-
compliant.  The Year 2000 computer issue creates risk for the Company 
from third parties with whom the Company deals on financial transactions 
worldwide.  While the Company has begun efforts to seek reassurance from 
its suppliers and service providers, there can be no assurance that the 
systems of other companies that the Company deals with or on which the 
Company's systems rely will be timely converted, or that any such 
failure to convert by another company could not have an adverse effect 
on the Company.
<PAGE>
Item 8. Financial Statements and Supplementary Data

        Index to Consolidated Financial Statements


                                                                      Page


Report of Independent Auditors                                        31

Consolidated Balance Sheets as of December 31, 1997 and 1996          32

Consolidated Statements of Operations for each of the
years in the three-year period ended December 31, 1997                33

Consolidated Statements of Stockholders' Equity for each of the
years in the three-year period ended December 31, 1997                34

Consolidated Statements of Cash Flows for each of the
years in the three-year period ended December 31, 1997                35

Notes to Consolidated Financial Statements                            36

Unaudited Quarterly Financial Data                                    56

<PAGE>
        Report of Independent Auditors






The Board of Directors
   and Stockholders
Molecular Dynamics, Inc.:



We have audited the accompanying consolidated balance sheets of Molecular 
Dynamics, Inc. and subsidiaries as of December 31, 1997 and 1996, and the 
related consolidated statements of operations, stockholders' equity, and 
cash flows for each of the years in the three-year period ended December 
31, 1997.  These consolidated financial statements are the responsibility 
of the Company's management.  Our responsibility is to express an opinion 
on these consolidated financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing 
standards.  Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements are free 
of material misstatement.  An audit includes examining, on a test basis, 
evidence supporting the amounts and disclosures in the financial 
statements.  An audit also includes assessing the accounting principles 
used and significant estimates made by management, as well as evaluating 
the overall financial statement presentation.  We believe that our audits 
provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above 
present fairly, in all material respects, the financial position of 
Molecular Dynamics, Inc. and subsidiaries as of December 31, 1997 and 1996, 
and the results of their operations and their cash flows for each of the 
years in the three-year period ended December 31, 1997, in conformity with 
generally accepted accounting principles.



                                                        KPMG Peat Marwick LLP

Mountain View, California
January 28, 1998

<PAGE>
                    MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES 
                           Consolidated Balance Sheets 
                        (In thousands, except share data) 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          ---------------------
                                                            1997        1996
                                                          ---------   ---------
<S>                                                       <C>         <C>
                     ASSETS
Current assets:
   Cash and cash equivalents                               $11,571      $8,024
   Securities available-for-sale                             8,558      12,617
   Trade accounts receivable, net of allowance for 
       doubtful accounts of $282 in 1997 and $254 in 1996   14,403      11,002
   Other accounts receivable                                 5,721       1,559
   Inventories                                              10,675       6,869
   Prepaids and other current assets                           560         347
                                                          ---------   ---------
                Total current assets                        51,488      40,418

Property and equipment, net                                  4,722       2,997
Other assets, net                                            2,845       2,628
                                                          ---------   ---------
                                                           $59,055     $46,043
                                                          =========   =========

      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
   Accounts payable                                         $3,554      $3,264
   Accrued expenses                                          5,491       5,073
   Factoring liability                                         447       1,124
   Unearned revenue and customer advances                    7,645       3,068
                                                          ---------   ---------
                Total current liabilities                   17,137      12,529
                                                          ---------   ---------

Commitments and contingencies

Stockholders' equity
   Common stock, $.01 par value; 30,000,000 shares
     authorized; 10,366,772 and 10,208,356 shares issued
     and outstanding in 1997 and 1996, respectively            104         102
   Additional paid-in capital                               39,467      39,862
   Accumulated earnings (deficit)                            2,434      (2,426)
   Unrealized gain on securities available-for-sale              7           5
   Cumulative translation adjustment                           (94)        (86)
   Less 445,800 shares of common stock in treasury
     in 1996 at cost                                           --       (3,943)
                                                          ---------   ---------
                  Total stockholders' equity                41,918      33,514
                                                          ---------   ---------
                                                           $59,055     $46,043
                                                          =========   =========
</TABLE>
   See accompanying notes to consolidated financial statements. 
<PAGE>

                    MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES 
                      Consolidated Statements of Operations 
                      (In thousands, except per share data) 
<TABLE> 
<CAPTION> 
                                                Years Ended December 31,
                                          ---------------------------------
                                            1997        1996        1995
                                          ---------   ---------   ---------
<S>                                       <C>         <C>         <C>
Sales and other revenue                    $55,715     $49,378     $38,938

Cost of sales and other revenue             25,456      21,471      17,532
                                          ---------   ---------   ---------

Gross margin                                30,259      27,907      21,406
                                          ---------   ---------   ---------

Operating expenses:
  Research and development                   6,871       6,628       5,533
  Sales and marketing                       14,351      14,662      14,017
  General and administrative                 4,697       3,723       3,728
  Acquired in-process research and
     development                                --          --       2,082
                                          ---------   ---------   ---------

Total operating expenses                    25,919      25,013      25,360
                                          ---------   ---------   ---------

Operating income (loss)                      4,340       2,894      (3,954)
                                          ---------   ---------   ---------

Other income:
  Interest income                            1,106         844         918
  Other income                                  77          49          69
                                          ---------   ---------   ---------

Total other income                           1,183         893         987
                                          ---------   ---------   ---------

Income (loss) before income taxes            5,523       3,787      (2,967)

Income taxes                                   663         379          20
                                          ---------   ---------   ---------

Net income (loss)                           $4,860      $3,408     ($2,987)
                                          =========   =========   =========
Earnings (loss) per share:
  Basic                                      $0.48       $0.34      ($0.30)
                                          =========   =========   =========
  Diluted                                    $0.43       $0.32      ($0.30)
                                          =========   =========   =========

Shares used to compute earnings (loss)
per share:
  Basic                                     10,181      10,058      10,095
                                          =========   =========   =========
  Diluted                                   11,368      10,715      10,095
                                          =========   =========   =========
</TABLE>
       See accompanying notes to consolidated financial statements. 
<PAGE>

                    MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES 
                 Consolidated Statements of Stockholders' Equity 
                  Years ended December 31, 1997, 1996, and 1995 
                             (Dollars in thousands) 
<TABLE>
<CAPTION>
                                                                        Retained  Unrealized   Cumula-
                                                                        Earnings  Gain (loss)   tive                         Total
                                           Common Stock    Additional   (Accumu-  on SecuritieTransla-    Treasury Stock    Stock-
                                       -------------------   Paid-in     lated    Available-    tion    ------------------ holders'
                                         Shares    Amount    Capitsl    Deficit)   for-Sale   Adjustment Shares    Amount   Equity
                                       ----------- ------- ----------- ---------- ----------- --------- --------- -------- ---------
<S>                                    <C>         <C>     <C>         <C>        <C>         <C>       <C>       <C>      <C>
Balances, December 31, 1994            10,152,344    $102     $40,433    ($2,847)      ($497)       $1  (115,155)   ($738)  $36,454

Treasury stock acquired                       --      --          --           --        --        --   (270,000)  (1,662)   (1,662)
Exercise of stock options                  49,488     --           36          --        --        --         --     --          36
Treasury stock reissued in connection
  with exercise of stock options              --      --         (303)         --        --        --    121,974      785       482
Sale of common stock under
  employee stock purchase plan              6,524     --           35          --        --        --         --     --          35
Treasury stock reissued in connection
  with employee stock purchase plan           --      --         (123)         --        --        --    134,581      860       737
Translation adjustment                        --      --          --           --        --         10        --     --          10
Unrealized gain on securities available-
  for-sale                                    --      --          --           --        540       --         --     --         540
Net loss                                      --      --          --      (2,987)        --        --        --      --      (2,987)
                                       ----------- ------- ----------- ---------- ----------- --------- --------- -------- ---------
Balances, December 31, 1995            10,208,356     102      40,078     (5,834)         43        11  (128,600)    (755)   33,645

Treasury stock acquired                       --      --          --           --        --        --   (586,500)  (4,855)   (4,855)
Treasury stock reissued in connection
  with exercise of stock options              --      --         (216)         --        --        --    109,878      691       475
Treasury stock reissued in connection
  with employee stock purchase plan           --      --          (90)         --        --        --    159,422      976       886
Tax benefit of employee stock
  transactions                                --      --           90          --        --        --         --     --          90
Translation adjustment                        --      --          --           --        --        (97)       --     --         (97)
Unrealized loss on securities available-
  for-sale                                    --      --          --           --        (38)      --         --     --         (38)
Net income                                    --      --          --       3,408         --        --         --     --       3,408
                                       ----------- ------- ----------- ---------- ----------- --------- --------- -------- ---------
Balances, December 31, 1996            10,208,356     102      39,862     (2,426)          5       (86) (445,800)  (3,943)   33,514
Treasury stock reissued in connection
  with exercise of stock options              --      --       (1,271)         --        --        --    355,125    3,093     1,822
Exercise of stock options                 105,111       1         436          --        --        --        --        --       437
Treasury stock reissued in connection
  with employee stock purchase plan           --      --         (368)         --        --        --     90,675      850       482
Sale of common stock under
  employee stock purchase plan             53,305       1         566          --        --        --        --        --       567
Tax benefit of employee stock
  transactions                                --      --          242          --        --        --         --     --         242
Translation adjustment                        --      --          --           --        --         (8)       --     --          (8)
Unrealized gain on securities available-
  for-sale                                    --      --          --           --          2       --         --     --           2
Net income                                    --      --          --       4,860         --        --         --     --       4,860
                                       ----------- ------- ----------- ---------- ----------- --------- --------- -------- ---------
Balances, December 31, 1997            10,366,772    $104     $39,467     $2,434          $7      ($94)       --    $--     $41,918
                                       =========== ======= =========== ========== =========== ========= ========= ======== =========
</TABLE>
       See accompanying notes to consolidated financial statements. 
<PAGE>

                    MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES 
                      Consolidated Statements of Cash Flows 
                                 (In thousands) 
<TABLE>
<CAPTION>
                                                    Years Ended December 31,
                                               -------------------------------
                                                 1997       1996       1995
                                               ---------  ---------  ---------
<S>                                            <C>        <C>        <C>
Cash flows from operating activities:
   Net income (loss)                             $4,860     $3,408    ($2,987)
   Adjustments to reconcile net income
     (loss) to net cash provided by (used
     in) operating activities:
       Depreciation and amortization              2,186      1,878      1,336
       Provision for doubtful accounts               30         30         30
       Loss on disposition of property              182         73         34
       Tax benefit of employee stock transactio     242         90         --
       Changes in items affecting operations:
         Trade accounts receivable               (3,936)       910     (3,210)
         Other accounts receivable               (4,181)    (1,559)        --
         Inventories                             (3,880)       572     (1,129)
         Prepaids and other current assets         (204)       (30)        79
         Accounts payable                           327       (899)       365
         Accrued expenses                        (1,753)     1,745       (364)
         Unearned revenue and customer
          advances                                6,661      1,689        508
                                               ---------  ---------  ---------
           Net cash provided by (used in)
             operating activities                   534      7,907     (5,338)
                                               ---------  ---------  ---------

Cash flows from investing activities:
   Purchases of property and equipment           (3,458)    (1,532)    (1,189)
   Capitalized software development costs          (778)      (456)      (514)
   Purchases of securities available-for-sale   (52,447)   (25,780)   (18,858)
   Sales and maturities of securities
     available-for-sale                          56,506     28,018     25,376
   Other assets                                    (146)      (561)     1,515
                                               ---------  ---------  ---------
           Net cash (used in) provided by
            investing activities                   (323)      (311)     6,330
                                               ---------  ---------  ---------

Cash flows from financing activities:
   Proceeds from stock option exercises             437         --         36
   Proceeds from employee stock purchase plan       567         --         35
   Purchase of treasury stock                        --     (4,855)    (1,662)
   Reissuance of treasury stock                   2,304      1,271      1,219
   Proceeds from (repayments of) factoring, net    (677)     1,124         --
   Other liabilities                                 --         --        (42)
                                               ---------  ---------  ---------
           Net cash provided by (used in)
            financing activities                  2,631     (2,460)      (414)
                                               ---------  ---------  ---------
Effect of exchange rate changes on cash             705        161         54
                                               ---------  ---------  ---------
Net increase in cash and cash equivalents         3,547      5,297        632
Cash and cash equivalents, beginning of year      8,024      2,727      2,095
                                               ---------  ---------  ---------
Cash and cash equivalents, end of year          $11,571     $8,024     $2,727
                                               =========  =========  =========

Supplementary cash flow information:
   Cash paid:
     Interest                                       $19         $8         $4
                                               =========  =========  =========
     Income taxes                                  $172        $91        $17
                                               =========  =========  =========
</TABLE> 
   See accompanying notes to consolidated financial statements. 
<PAGE>

MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements

December 31, 1997 and 1996 


(1)     Summary of the Company and Significant Accounting Policies

        (a)     The Company

                Molecular Dynamics, Inc. (the Company) develops, 
manufactures and markets systems that accelerate genetic 
discovery and analysis. The Company markets a family of 
systems that significantly enhance the ability of scientists 
to visualize, quantify and analyze genetic information.  
Primary products of the Company include Gel and Blot 
Scanners, Capillary Array Sequencers (including the MegaBACE 
1000) and Microarray Systems.  The Company markets its 
products worldwide to universities, government research 
laboratories, and biotechnology, pharmaceutical, genomics 
and chemical companies. It provides direct sales, service 
and support of its products in the United States, Canada, 
Japan and several European countries and through exclusive 
distributors in other countries.

        (b)     Basis of Presentation

                The accompanying consolidated financial statements include 
the accounts of the Company and its wholly-owned 
subsidiaries.  All intercompany transactions and balances 
have been eliminated in consolidation. Certain 
reclassifications have been made to prior-year amounts to 
conform to current year presentation.

        (c)     Cash Equivalents

                The Company considers all highly liquid investments, which 
include U.S. government securities and corporate securities, 
with original maturities of three months or less to be cash 
equivalents.

        (d)     Inventories

                Inventories are stated at the lower of cost (first-in, 
first-out method) or market and include material, labor and 
manufacturing overhead costs.

        (e)     Property and Equipment

                Property and equipment are stated at cost less accumulated 
depreciation and amortization.  Depreciation is provided 
using the straight-line method over the estimated useful 
lives of the respective assets, generally three to five 
years.  Leasehold improvements are amortized using the 
straight-line method over the lesser of the lease terms or 
the estimated useful lives of the related assets.


<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



                In accordance with Statement of Financial Accounting 
Standards (SFAS) No.  121, Accounting for the Impairment of 
Long-Lived Assets and for Long-Lived Assets to be Disposed 
Of, the Company reviews, as circumstances dictate, the 
carrying amount of its long-lived assets. The purpose of 
these reviews is to determine whether the carrying amounts 
of these assets are recoverable. Recoverability is 
determined by comparing the projected undiscounted net cash 
flows of the long-lived assets against their respective 
carrying amounts. The amount of impairment, if any, is 
measured based on the excess of the carrying value over the 
fair value. Management believes that no impairment of the 
carrying value of long-lived assets has occurred.

 (f)    Acquired Technology and Patents

                Acquired technology and patents are stated at cost less 
accumulated amortization.  Amortization is provided using 
the straight-line method over the estimated useful lives of 
the respective assets, generally five years for technology 
and ten years for patents.

        (g)     Computer Software Costs

        The Company capitalizes internally generated software 
development costs in compliance with SFAS No. 86, Accounting 
for the Costs of Computer Software to be Sold, Leased or 
Otherwise Marketed. Capitalization of software development 
costs begins upon the establishment of technological 
feasibility for the product.  Software development costs 
capitalized were $778,000, $456,000 and $514,000 for the 
years ended December 31, 1997, 1996 and 1995, respectively, 
after considering credits to capitalized software of 
$498,000, $337,000 and $134,000 for the years ended December 
31, 1997, 1996 and 1995, respectively, representing support 
from the NIST grant. (See Note 5.)

                The Company amortizes such capitalized amounts upon product 
commercial release at the greater of the straight-line basis 
using the estimated economic lives of three to four years or 
the ratio of actual revenues achieved to total anticipated 
revenues over the lives of the products.  The realizability 
of unamortized capitalized costs is periodically reviewed 
relative to the estimated future revenues of the related 
products.  Capitalized software amortization expense 
amounted to $553,000, $586,000 and  $510,000 for the years 
ended December 31, 1997, 1996 and 1995, respectively.

        (h)     Revenue Recognition

                The Company recognizes revenue when title passes to the 
customer, which is generally upon shipment of the product to 
its customers.  Estimated warranty costs are recorded at the 
time of sale.  Amounts billed for extended service contracts 
are deferred and recognized over the term of the contracts.



(i)     Advertising Costs

All costs associated with advertising and promoting products 
are expensed as incurred.

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



        (j)     Income Taxes

                The Company accounts for income taxes under SFAS No. 109, 
Accounting for Income Taxes.  SFAS No. 109 requires that 
deferred tax assets or liabilities at the end of each period 
be determined using the tax rate expected to be in effect 
when the taxes are actually paid or recovered.  The 
measurement of deferred tax assets is reduced, if necessary, 
by a valuation allowance for any tax benefits which are not 
expected to be realized.  Under SFAS No. 109, the effect on 
deferred tax assets and liabilities of a change in tax rates 
is recognized in income in the period that includes the 
enactment date.

                The Company does not provide income taxes on the 
undistributed earnings of its foreign subsidiaries as it is 
intended that current and future earnings, if any, will be 
indefinitely invested in operations outside the United 
States.

        (k)     Foreign Currency Translation

        The functional currency for the Company's foreign 
subsidiaries is the local currency, except for the 
administrative subsidiary established in the Netherlands in 
1995, for which the U.S. dollar is the functional currency. 
The financial statements of the subsidiaries, other than 
those of the Netherlands, are translated into U.S. dollars 
in accordance with SFAS No. 52, Foreign Currency 
Translation. The resulting translation adjustments are 
recorded as a separate component of stockholders' equity. 
Realized gains and losses on foreign currency transactions 
are included in other income and expenses.

        (l)     Financial Instruments and Risk Concentration

                Foreign Currency Contracts - The Company enters into foreign 
exchange contracts to hedge receivables denominated in 
foreign currencies. The Company's forward exchange hedge 
contracts require the Company to exchange foreign currencies 
for U.S. dollars at rates agreed upon at the inception of 
the contracts.  Although the gross amounts are used to 
express the volume of these transactions, the amounts 
potentially subject to credit risk are limited to the 
difference between the counterparty's obligation and the 
obligation of the Company.  The contracts do not subject the 
Company to significant market risk from exchange rate 
movements because the gains and losses related to the 
contracts offset the foreign exchange gains and losses on 
the settlement of the transactions being hedged. Foreign 
currency transaction gains and losses, net of the impact of 
hedging, were not significant in 1997, 1996 and 1995. 
Realized gains and losses on hedge contracts are included in 
other income and expense.  As of December 31, 1997, the 
Company had approximately $2,592,000 of forward exchange 
contracts outstanding, consisting primarily of Japanese yen, 
German marks, French francs, and British pounds, to hedge 
firm commitments relating to certain of its foreign 
receivables. The contracts mature at various dates through 
June 1998. The fair value of the contracts is based on the 
exchange rate in effect on the last business day of the 
year. The carrying amount at December 31, 1997 approximates 
the fair value as the majority of the contracts were entered 
into shortly before yearend.



<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



        Securities Available-for-Sale - In accordance with SFAS No. 
115, Accounting for Certain Investments in Debt and Equity 
Securities, investment securities, consisting of U.S. 
government securities, corporate securities and certificates 
of deposit, are stated at fair market value and are 
considered to be available-for-sale.  Unrealized gains and 
unrealized losses, which are considered to be temporary, are 
reported as a separate component of stockholders' equity.  
Realized gains and losses and the amortized cost basis of 
investments are determined by specific identification. The 
fair market values of securities available-for-sale are 
based on quoted market prices at the reporting date for 
those investments.

        Other Financial Instruments - For certain of the Company's 
financial instruments, including cash and cash equivalents, 
accounts receivable, other assets, accounts payable, accrued 
expenses, unearned revenue and customer advances, the 
carrying amounts approximate fair value because of the short 
maturity of these instruments.

        Risk Concentration - Financial instruments, which 
potentially subject the Company to concentrations of credit 
risk, are primarily securities available-for-sale and 
accounts receivable. The Company places its securities 
available-for-sale in high-credit quality financial 
institutions and invests in high-quality investments, 
including U.S. government obligations, corporate securities 
and certificates of deposit.  The Company believes no 
significant concentration of credit risk exists with respect 
to these investments.  

Accounts receivable include amounts from customers located 
in the United States, Europe and the Asia-Pacific region.  
The Asia-Pacific region is currently experiencing currency, 
economic and political instability. To date, the Company has 
not experienced any significant adverse effects from this 
instability. Accounts receivable also include amounts from 
end users and distributors. Management believes a 
significant portion of the Company's revenue is derived from 
customers that are research groups which are funded by 
government agencies.  The Company believes that any credit 
risks associated with its accounts receivable are mitigated 
by the Company's credit evaluation process and allowance for 
doubtful accounts. One customer accounted for 19% of the 
trade accounts receivable balance at December 31, 1997.  

                Certain components used in the Company's products, including 
the storage phosphor screens used with the PhosphorImager and 
the capillary arrays used with the MegaBACE 1000, are 
currently purchased from single sources.  The storage phosphor 
screens are manufactured by Kodak.  Although such screens are 
available commercially from Kodak, the Company believes that 
the Company and Kodak, which uses the screens for medical 
imaging applications, are the only significant customers.  Any 
disruption or delay in the supply of screens by Kodak would 
have a material adverse effect on the Company.  The capillary 
arrays used by the MegaBACE 1000 are manufactured by Polymicro 
Technologies, Inc. (PTI).  Should there be a disruption or 
delay in the supply of capillary arrays from PTI, Molecular 
has sufficient raw materials, engineering and process 
documentation to continue manufacturing arrays to forecast for 
some time.  The Company has qualified a second vendor that can 
manufacture arrays, after a setup time.  Additional 
components, such as computers, lasers, optical elements and 
galvanometers are currently 

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



        purchased in configurations specific to and integrated into 
the Company's products. While the Company believes that most 
of the components used in its products are available from 
alternate sources, any unanticipated interruption of the 
supply of these additional components or other supplies could 
require the Company to redesign its products.

        (m)     Earnings (Loss) Per Share

                In 1997, the Financial Accounting Standards Board (FASB) 
issued SFAS No. 128, Earnings per Share, which requires the 
presentation of basic and diluted earnings (loss) per share. 
Basic earnings (loss) per share is calculated using the 
weighted average number of common shares outstanding during 
the period. Diluted earnings (loss) per share is calculated 
using the weighted average number of common share and common 
stock equivalents, if dilutive, outstanding during the 
period. Common stock equivalents from outstanding stock 
options are calculated using the treasury stock method. 
Earnings (loss) per share amounts for all periods presented 
conform to the requirements of SFAS No. 128, after 
restatement where appropriate.

        (n)     Year End

                The Company's fiscal year end is the Sunday nearest December 
31, and the Company operates and reports on 13-week 
quarterly periods each ending on the Sunday closest to month 
end.  For clarity of presentation, the Company has indicated 
its accounting year as ending on December 31.

 (o)    Accounting for Stock-Based Compensation

The Company adopted SFAS No. 123, Accounting for Stock-Based 
Compensation effective January 1, 1996. This statement 
establishes financial accounting and reporting standards for 
stock-based compensation, including employee stock purchase 
plans and stock option plans.  As allowed by SFAS No. 123, 
the Company continues to measure compensation expense for 
awards granted to employees under the provisions of APB No. 
25, Accounting for Stock Issued to Employees.

        (p)     Use of Estimates

                The preparation of financial statements in conformity with 
generally accepted accounting principles requires management 
to make estimates and assumptions that affect the recorded 
amounts of assets and liabilities at the date of the 
consolidated financial statements and of revenues and 
expenses during the reporting period, as well as the 
disclosure of contingent assets and liabilities at the date 
of the consolidated financial statements.  A change in the 
facts and circumstances surrounding these estimates could 
result in a change to the estimates and impact future 
operating results.
<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)

(2)   Consolidated Balance Sheet Components 

      Certain balance sheet components are as follows (in thousands): 

                                              December 31,
                                          -----------------------
                                             1997         1996
                                          ----------   ----------
  (a)   Inventories:

        Raw material                         $5,842       $3,045
        Work-in-process                       2,328        1,786
        Finished goods                        2,505        2,038
                                          ----------   ----------
                                            $10,675       $6,869
                                          ==========   ==========

  (b)   Property and Equipment:

        Machinery and equipment              $7,935       $6,277
        Furniture and fixtures                1,030          824
        Leasehold improvements                1,913        1,081
                                          ----------   ----------
                                             10,878        8,182
        Less accumulated depreciation
           and amortization                   6,156        5,185
                                          ----------   ----------
                                             $4,722       $2,997
                                          ==========   ==========

  (c)   Other Assets:

        Capitalized software                 $2,299       $2,928
        Other                                 1,739        1,636
                                          ----------   ----------
                                              4,038        4,564
        Less accumulated amortization         1,193        1,936
                                          ----------   ----------
                                             $2,845       $2,628
                                          ==========   ==========

  (d)   Accrued Expenses:

        Accrued salaries and benefits        $2,040       $1,971
        Accrued warranty costs                1,194        1,044
        Other                                 2,257        2,058
                                          ----------   ----------
                                             $5,491       $5,073
                                          ==========   ==========

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



(3)   Securities Available-for-Sale 

      The following is a summary of the fair market value of securities 
      available-for-sale (in thousands): 
                                              December 31,
                                          -----------------------
                                             1997         1996
                                          ----------   ----------
        U.S. government securities           $8,895      $10,097
        Corporate securities                  9,442        3,625
        Certificates of deposit                  --        1,889
                                          ----------   ----------
                                             18,337       15,611
        Less cash equivalents                 9,779        2,994
                                          ----------   ----------
                                             $8,558      $12,617
                                          ==========   ==========

      As of December 31, 1997, the Company's investments are scheduled to 
      mature as follows (in thousands): 
                                             Fair
                                            Market
                Maturity                    Value
- ----------------------------------------  ----------
           Less than one year               $13,648
           1-3 years                          4,689
                                          ----------
                                            $18,337
                                          ==========

      At December 31, 1997 and 1996 differences between amortized cost and 
      fair market value due to unrealized gains and losses were not material.
      Realized gains and losses in 1997, 1996 and 1995 were not material. 

(4)     Alliance with Amersham Pharmacia Biotech

        On April 6, 1994, the Company entered into an alliance with 
Amersham Pharmacia Biotech (Amersham) whereby the companies agreed 
to share any net profits or losses on the development and 
distribution of certain instruments and reagents included in the 
alliance.  These include the MegaBACE 1000 products and Microarray 
Technology Access Programs.  Under the agreement, the companies 
have also agreed to collaborate on the development of future 
products. Amersham acquired approximately one million shares of 
the Company's capital stock on the open market as part of this 
agreement.


<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



        The Company and Amersham Pharmacia Biotech are developing systems 
for fluorescence analysis of DNA in microarrays.  By the end of 
1997, the Company had entered into 11 agreements (Technology 
Access Agreements) with genomics and pharmaceutical companies and 
educational institutions for early access to this technology. One 
of these agreements began in November 1996.  Under the terms of 
these agreements, companies and educational institutions provide 
capital and technical feedback in exchange for delivery of various 
generations of systems and a period of exclusive access to the 
Company's technology.  Instrument revenue was recognized upon 
shipment of the systems, and represented approximately 9% of 
instrument revenue in 1997.  Access fees received by the Company 
from its customers under its Technology Access Agreements are 
deferred and amortized over the period of the agreement.  Amounts 
amortized are first used to offset the related research and 
development expenses in the period of amortization and amounts in 
excess of the related research and development expenses are 
recognized as revenue. Research and development expenses were 
reduced by $1.7 million and an immaterial amount in 1997 and 1996, 
respectively, from credits representing amortization of fees from 
clients participating in the Technology Access Program. 

        Under the terms of the agreement between the Company and Amersham, 
the Company will retain a certain amount of the Initial Profits, 
as defined by the parties, related to certain of the Technology 
Access Agreements.  All subsequent profits will be shared.  As of 
December 31, 1997, the Company had realized a portion of the 
Initial Profits under this agreement.



 (5)    Collaborations with Affymetrix, Inc.

        NIST Grant:  In the fourth quarter of 1994, a consortium led by 
Affymetrix, Inc. (Affymetrix) and the Company was awarded funding 
from the Advanced Technology Program (ATP) of the National 
Institute of Standards and Technology (NIST).  The Company and its 
partner, Affymetrix, collaborate with researchers at several 
academic and research institutions in an effort to develop 
miniaturized DNA diagnostic systems.  The Company has received 
notification from NIST that funding has been authorized for the 
remaining term of the grant, which ends in January 2000.  The two 
companies will receive up to $31 million in matching funds to be 
divided 33% to the Company and 67% to Affymetrix over the five 
years of the grant period beginning in January 1995, for research 
and development in the field of DNA diagnostic devices with a 
total shared project cost of $63 million.  Approximately  $18.3 
million of the $31 million was available for the first three years 
of the grant period, which ended in January 1998. In 1997, 1996 
and 1995, the Company recognized credits to its expenses of 
approximately $2.1 million, $1.9 million and $1.5 million, and 
reduced its capitalized software by $498,000, $337,000 and 
$134,000, respectively, representing support from the grant.  Over 
the five-year term of the project, the Company will fund $10.7 
million and receive matching funds of $10.7 million, for a total 
expenditure of $21.4 million.  The additional funding will allow 
the Company to work toward developing new fluorescence detection 
technologies and DNA separation devices and apply these to the 
expanding field of molecular genetics. 

        Genetic Analysis Technology ConsortiumT:  In December of 1997, the 
Company and Affymetrix announced the formation of the Genetic 
Analysis Technology Consortium (GATCT), which was formed to 
provide a unified technology platform to design, process, read and 
analyze DNA arrays.  In connection with this agreement, the two 
companies also signed a non-exclusive, world-wide,
<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



        royalty-bearing license granting Molecular rights to certain 
Affymetrix technology for commercializing low and medium density 
DNA arrays.  Under the terms of the license agreement, the Company 
paid Affymetrix an up-front license fee, and will pay operating 
fees for instruments if certain patents issue in the future, as 
well as royalties in the future associated with product sales.  In 
addition, Molecular licensed Affymetrix under certain of its 
patents in the array reader field.

(6) Other Government Grants

In June 1997, the Company received a grant from the National 
Institutes of Health National Human Genome Research Institute.  
Under the terms of the grant, the Company will receive approximately 
$2 million over a two-year period to support development of an 
integrated system to increase the productivity and speed of DNA 
sequencing.  In 1997, the Company recorded credits to expense of 
approximately $200,000, representing support from this grant.


(7)     Factoring Agreement

        The Company has established a factoring program in Japan in order to 
shorten the time between customer shipments and receipt of payment. 
Because the Company retains ultimate responsibility for collection 
of its Japan accounts, amounts paid by the factoring entity are 
classified as liabilities until the customer pays the factoring 
entity. The factoring charge amounts to 1.625 percent per annum, of 
the amount factored. There are no collateral requirements and no 
financial ratio requirements associated with the agreement.

(8)     Acquired In-process Research and Development

        In December 1994, the Company entered into an agreement with 
BioLumin, Incorporated (BioLumin) in order to allow it to pursue 
the development of technology possessed by BioLumin.  The Company 
determined that the technology purchased from BioLumin in 1995 was 
in-process research and development and therefore the amount 
allocated to this technology of $2.1 million was expensed as 
acquired in-process research and development in the accompanying 
consolidated statement of operations for the year ended December 
31, 1995.  The agreement with BioLumin also provides for royalty 
payments to be made by the Company.  In 1997 and 1996, the Company 
recorded approximately $89,000 and an immaterial amount, 
respectively, for these royalties.

 (9)    Preferred Share Purchase Rights Plan

        On November 8, 1994, the Board of Directors declared a dividend 
distribution of one Preferred Share Purchase Right (the Rights) on 
each outstanding share of its common stock payable to stockholders 
of record as of December 2, 1994.  

        The Rights will be exercisable only if a person or group acquires 
20% or more of the Company's common stock or announces a tender 
offer, the consummation of which would result in ownership by a 
person or group of 20% or more of the Company's common stock.  
Each Right will entitle stockholders to buy one one-hundredth of a 
share of Series A Junior Participating Preferred Stock at an 
exercise price of $30.85 upon certain events.

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



        If, after the Rights become exercisable, the Company is acquired 
in a merger or other business combination transaction, or sells 
50% or more of its assets or earnings power, each Right will 
entitle its holder to purchase, at a Right's then-current exercise 
price, shares of the acquiring company's common stock having a 
market value equal to twice a Right's exercise price.

        In addition, if a person or group acquires 20% or more of the 
Company's outstanding common stock, other than pursuant to a 
tender offer for all shares which is determined by the Board of 
Directors to be fair and in the best interests of the Company and 
its stockholders, each Right will entitle its holder (other than 
such person or members of such group) to purchase, at a Right's 
exercise price, shares of the Company's common stock (or cash, 
other securities or property) having a market value equal to twice 
a Right's exercise price.

        Following the acquisition by a person or group of beneficial 
ownership of 20% or more and prior to an acquisition of 50% or 
more of the Company's common stock, the Board of Directors may 
exchange the Rights (other than Rights owned by such person or 
group), in whole or in part, at an exchange ratio of one share of 
common stock (or one one-hundredth of a share of the Series A 
Junior Participating Preferred Stock) per Right.

        At any time prior to ten days after a person or group has acquired 
beneficial ownership of 20% or more of the combined number of the 
Company's common stock, the Rights are redeemable for $.005 per 
Right at the option of the Board of Directors.

(10)    Stockholders' Equity

        In May 1994, the Board of Directors approved a Stock Repurchase 
Program that authorized the purchase of up to 1,000,000 shares of 
the Company's common stock in the open market. In February 1997, 
the Board of Directors authorized the repurchase of an additional 
500,000 shares of the Company's common stock under this program. 
Approximately 1,000,000 shares were purchased by the Company 
through December 31, 1997.  Of these shares, approximately 413,000 
shares were reissued under the Company's Employee Stock Purchase 
Plan and approximately 587,000 shares were reissued upon the 
exercise of common stock options through December 31,1997.

 (11)   Benefit Plans

        (a)     Stock-Based Compensation Plans

                Fixed Stock Option Plan

The Company has one fixed stock option plan, the 1997 Stock 
Option Plan (the Plan), which provides for the granting of 
options to employees, consultants, officers and directors to 
purchase common stock at prices not less than 100% and 85% 
of the fair market value of the Company's common stock for 
incentive and nonqualified options, respectively.  The 
Company may grant options for up to 4,004,500 shares of 
common stock.  All options are to have a term not greater 
than ten years. Options granted generally vest 25% after one 
year and then ratably at 6 1/4 % per quarter over a three-year 
period. At December 31, 1997, 464,121 shares were available 
for future grant.

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)


All options granted under this plan through December 31, 
1997, have been nonqualified options.  The Plan provides for 
the acceleration of vesting of outstanding options at the 
time of a change in control of the Company as described in 
the Plan. All grants are at the current fair market value on 
the date of the grant.  

                Under the Plan there is an Automatic Option Grant Program 
that provides for an initial stock option grant to all 
nonemployee members of the Board of Directors of 10,000 
shares of common stock and subsequent annual grants of 3,500 
shares of common stock. Each initial 10,000 share grant 
vests 25% on the date of grant and the remaining 75% in 
three equal annual installments over the optionee's 
continued period of Board service measured from the grant 
date. Each subsequent 3,500 share grant vests upon 
completion of one year of Board service measured from the 
grant date.

    The following table summarizes option activity for the years ended 
    December 31, 1997, 1996 and 1995: 
<TABLE> 
<CAPTION> 
                                              1997                 1996                 1995
                                       -------------------- -------------------- --------------------
                                                  Weighted             Weighted             Weighted
                                                   Average              Average              Average
                                                  Exercise             Exercise             Exercise
(Shares in thousands)                    Shares     Price     Shares     Price     Shares     Price
- -------------------------------------- ---------- --------- ---------- --------- ---------- ---------
<S>                                    <C>        <C>       <C>        <C>       <C>        <C>
Outstanding at beginning of year       2,229,718     $5.22  2,013,006     $5.00  1,792,934     $4.70
    Granted                              560,575     16.00    420,200      6.42    565,800      6.15
    Exercised                           (460,236)     4.91   (109,878)     4.33   (171,462)     3.02
    Forfeited                            (73,274)     6.59    (78,461)     7.03   (157,978)     7.34
    Expired                               (2,500)     9.00    (15,149)     9.15    (16,288)     9.65
                                       ----------           ----------           ----------
Outstanding at end of year             2,254,283      7.90  2,229,718      5.22  2,013,006      5.00
                                       ==========           ==========           ==========
Options exercisable
   at end of year                      1,278,836            1,323,514            1,063,087
                                       ==========           ==========           ==========
Weighted-average fair value of
   options granted during the year         $9.27                $3.36                $3.21
                                       ==========           ==========           ==========
</TABLE>
<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)

   The following table summarizes information about stock options 
   outstanding as of December 31, 1997.
<TABLE>
<CAPTION>
                         Options Outstanding            Options Exercisable
                 ----------------------------------  ----------------------
                              Weighted
                               Average    Weighted                Weighted
                   Number     Remaining   Average      Number     Average
  Range of       Outstanding Contractual  Exercise   Exercisable  Exercise
 Exercise Prices  12/31/97   Life (in yrs  Price      12/31/97     Price
- ---------------- ----------- ----------- ----------  ----------- ----------
<S>              <C>         <C>         <C>         <C>         <C>
 $0.25 -   0.67     407,850         2.4      $0.42      407,850      $0.42
  2.00 -   5.88     322,906         7.4       5.39      174,364       5.13
  6.00 -   9.75     843,782         7.0       6.55      553,664       6.49
 11.00 -  15.75     483,695         8.5      13.40      141,646      12.29
 16.00 -  19.38     108,100         9.8      17.19          625      17.00
 20.38 -  27.00      87,950         9.8      23.19          687      22.45

                 -----------                         -----------
 $0.25 -  27.00   2,254,283         6.8      $7.91    1,278,836      $5.02
                 ===========                         ===========
</TABLE>

   Stock Purchase Plan 

   Under the Company's Employee Stock Purchase Plan (the Purchase Plan), 
   which began in 1993, employees meeting certain specific employment 
   qualifications are eligible to participate and are granted rights to 
   purchase shares of the Company's common stock semiannually through 
   payroll deductions at the lower of 85% of the fair market value of the 
   stock at the beginning or end of the purchase period. The Purchase Plan
   permits eligible employees to purchase common stock through payroll 
   deductions, for up to 15% of their salary, subject to certain 
   limitations. The Company is authorized to issue up to 1,000,000 shares o
   common stock under the Purchase Plan and has sold 143,980 shares, 
   159,422 shares and 141,105 shares to employees in 1997, 1996 and 1995, 
   respectively. At December 31, 1997, 373,343 shares remain available for
   future  issuance. The weighted-average fair value of purchase rights 
   granted under the Purchase Plan in 1997, 1996 and 1995 were $5.10, $1.99
   and $2.35, respectively.



   Pro Forma Information 


   The Company continues to apply APB No. 25 in accounting for its 
   stock-based compensation plans. Accordingly, no compensation cost has 
   been recognized in the accompanying consolidated statements of 
   operations for its fixed stock option plan and its stock purchase plan.
   Had compensation cost for the Company's stock-based compensation plans
   been determined in accordance with the fair value method prescribed in 
   SFAS No. 123, the Company's net income (loss) and earnings (loss) per 
   share would have been changed to the pro forma amounts indicated below.

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)


                                               Years Ended December 31,
                                         ----------------------------------
                                            1997        1996        1995
                                         ----------  ----------- ----------
   Net income (loss) (in thousands)
         As reported                        $4,860       $3,408    ($2,987)
         Pro forma                          $3,015       $2,513    ($3,525)

  Basic earnings (loss) per share
         As reported                         $0.48        $0.34     ($0.30)
         Pro forma                           $0.30        $0.25     ($0.35)

  Diluted earnings (loss) per share
         As reported                         $0.43        $0.32     ($0.30)
         Pro forma                           $0.27        $0.23     ($0.35)

   The above pro forma amounts include compensation expense for options 
   and purchase rights granted since January 1, 1995, and may not be 
   representative of that to be expected in future years. 

   The fair value of each option granted under the Plan and purchase 
   rights granted under the Purchase Plan is estimated on the date of 
   grant using the Black-Scholes option-pricing model with the following 
   weighted-average assumptions used for grants in 1997, 1996 and 1995: 

<TABLE> 
<CAPTION> 
                                                                                  Employee
                                Employees                Officers             Stock Purchase Plan
                         -----------------------  -----------------------  -----------------------
                          1997    1996    1995     1997    1996    1995     1997    1996    1995
                         ------- ------- -------  ------- ------- -------  ------- ------- -------
<S>                      <C>     <C>     <C>      <C>     <C>     <C>      <C>     <C>     <C>
Expected volatility          70%     62%     62%      70%     62%     62%      70%     62%     62%
Expected life (in years)    3.5     3.5     3.5      6.0     5.0     5.0      0.5     0.5     0.5
Risk-free interest rate    6.09%   6.16%   6.21%    6.48%   6.54%   6.35%    5.23%   5.24%   5.96%
</TABLE> 

   A dividend yield of zero was used for each year. 

        (b)     Savings Plan

                The Company sponsors a 401(k) Savings Plan (the 401(k) Plan) 
that covers substantially all full-time U.S. employees.  
Employees can elect to defer, in the form of contributions 
to the 401(k) Plan, up to 20% of their compensation, limited 
to $9,500 in 1997.  The Company may make discretionary 
contributions in the amounts determined by the Board of 
Directors. Discretionary contributions of approximately 
$34,000 and $193,000 were made in 1997 and 1996, 
respectively. There were no such contributions in 1995.

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)

(12)    Commitments and Contingencies 

  (a)   Leases 

      The Company leases its U.S. facility under an operating lease 
      expiring in 2001 and its European, Japanese, and Australian 
      facilities under operating leases expiring at various dates 
      through 2005. The Company also leases certain equipment under 
      operating leases. The future minimum lease payments under 
      noncancelable operating leases as of December 31, 1997 are as
      follows (in thousands): 

      Year                                            Amount
     ------                                          ---------
      1998                                             $2,025
      1999                                              1,601
      2000                                              1,415
      2001                                                267
      2002                                                 70
      Thereafter                                          130
                                                     ---------
      Total future minimum lease payments              $5,508
                                                     =========


      Rent expense approximated $1,704,000, $1,410,000, and $1,219,000
      for the  years ended December 31, 1997, 1996, and 1995,
      respectively, which includes sublease income of approximately
      $84,000, $176,000 and $60,000, respectively. 

        (b)     Patent Settlement

                In March 1992, the Company reached an agreement with Fuji 
Photo Film Co., Ltd.  settling certain patent infringement 
related claims.  Under the agreement, the Company received a 
nonexclusive license to the patent rights for the remaining 
terms of the patents (currently between 4 and 13 years) and 
pays royalties on sales of the underlying products to which 
the patents relate.  The Company incurred royalties of 
approximately $580,000, $575,000 and $479,000 in 1997, 1996 
and 1995, respectively, under this arrangement.  The terms 
of this licensing agreement were renegotiated in 1997, 
permitting PhosphorImager products to be sold in Japan.

        (c)     Compensating Balances

                As of December 31, 1997, the Company had a $190,000 
certificate of deposit that was held as a compensating 
balance for the Company's credit facility.  This credit 
facility was used to secure letters of credit for its 
foreign subsidiaries.  This amount is included in cash and 
cash equivalents in the accompanying consolidated balance 
sheet at December 31, 1997.

(d) Litigation

The Company is subject to various legal proceedings and 
claims that arise in the ordinary course of business. 
Management believes that the ultimate amount of liability, 
if any, with respect to any pending actions, either 
individually or in the aggregate, will not materially affect 
the financial position, results of operations or liquidity 
of the Company.

<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



On March 13, 1998, Molecular Dynamics, Amersham Pharmacia 
Biotech UK Limited and Amersham Life Science Inc. were 
served with a complaint brought by the Perkin-Elmer 
Corporation, PE Applied Biosystems Division ("Applied 
Biosystems") alleging willful infringement by the Company of 
two United States Patents owned by Perkin-Elmer and seeking 
a declaratory judgment that either Applied Biosystems does 
not infringe a United States patent exclusively licensed to 
Amersham Pharmacia Biotech, or such patent is invalid.  This 
alleged infringement relates to Molecular Dynamics' MegaBACE 
1000 DNA Sequencing Systems and FluorImager 595 Imaging 
Systems.  Applied Biosystems is seeking injunctive relief as 
well as a claim for damages regarding the alleged 
infringement, along with attorneys' fees.  No trial date has 
been set, and no response to the complaint has yet been 
filed.  The complaint was filed in United States District 
Court, Northern District of California.  Although Management 
believes that the ultimate disposition of this matter will 
not materially affect the financial position, results of 
operations or liquidity of the Company, significant legal 
expenses could be incurred relative to such lawsuit.

(e)     License Agreements

The Company has entered into two exclusive license 
agreements for two patents with the University of California 
at Berkeley, pursuant to which it acquired certain rights to 
design, manufacture and sell products based on technology 
relating to confocal fluorescence gel scanning.  The Company 
will pay a royalty under these licenses based on sales of 
products incorporating the licensed technology.  The first 
patent covered by this agreement was issued in February 1992 
and the second was issued in December 1993.  Because the 
technology was developed in part through the use of federal 
government funds, the Company's licenses of such patent 
rights may be subject to certain rights of the United States 
governmental agencies to use the technology. Royalty expense 
in 1997 related to sales of MegaBACE 1000 was not material.

In September 1997, the Company entered into a software license 
agreement with Incyte Pharmaceuticals, Inc. to secure access 
to Incyte's LifeArray gene expression database software. 
Amounts will be paid to Incyte under this agreement if certain 
milestones are met.


<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)

(13)  Income Taxes 

      Income taxes for the years ended December 31, 1997, 1996, and 1995 
      comprised (in thousands): 

                                            1997       1996       1995
                                          ---------  ---------  ---------
Current:
    Federal                                   $119       $186     $  --
    Foreign                                    137         51         48
    State                                      165         52        (28)
                                          ---------  ---------  ---------
                                               421        289         20
                                          ---------  ---------  ---------
Deferred:
    Federal                                    --         --         --
    State                                      --         --         --
                                          ---------  ---------  ---------
                                                 0          0          0
                                          ---------  ---------  ---------
Charge in lieu of taxes attributable
  to employee stock plans                      242         90        --
                                          ---------  ---------  ---------
Total                                         $663       $379        $20
                                          =========  =========  =========

     The reconciliation between the amount computed by applying the U.S. 
     federal statutory tax rate of 34% to income (loss) before income taxes 
     and the actual income taxes follows (in thousands): 

                                            1997       1996       1995
                                          ---------  ---------  ---------
Income taxes expense (benefit) at
   statutory rate                           $1,878     $1,288    ($1,009)
State income taxes, net of federal
   income tax benefit                           77         33         48
Losses and credits for which no 
   benefit was recognized                        --       277        963
Utilization of NOL                          (1,536)    (1,283)         --
Rate differential on foreign taxes             217        142          --
Other                                           27        (78)        18
                                          ---------  ---------  ---------
                                              $663       $379        $20
                                          =========  =========  =========
<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)


     The tax effects of temporary differences that give rise to significant 
     portions of the deferred tax assets and liabilities as of December 31, 
     1997 and 1996 are presented below (in thousands): 

                                                       1997       1996
                                                     ---------  ---------
Deferred tax assets: 
  Reserves and accruals for financial reporting
     purposes not taken for tax purposes               $1,444     $1,372
  Net operating loss carryforwards                      2,123      2,299
  Research and other credit carryforwards               3,240      2,387
  Foreign net operating loss carryforwards                281        266
  Other                                                   146         67
                                                     ---------  ---------

             Total gross deferred tax assets            7,234      6,391
             Valuation allowance                       (6,471)    (5,838)
                                                     ---------  ---------
             Net deferred tax assets                      763        553
                                                     ---------  ---------

Deferred tax liabilities:
  Software costs, principally due to
    capitalization and amortization for
    financial reporting purposes                         (645)      (553)
  Property and equipment                                 (118)         --
                                                     ---------  ---------

             Total gross deferred tax liabilities        (763)      (553)
                                                     ---------  ---------
             Net deferred taxes                        $  --      $  --
                                                     =========  =========
<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)



        The valuation allowance increased by $633,000, decreased by 
$446,000, and increased by $2,440,000 during the years ended 
December 31, 1997, 1996 and 1995, respectively.  The valuation 
allowance as of December 31, 1997 includes a tax effect of 
approximately $2,404,000 attributable to employee stock plans, the 
benefit of which will be recorded as an increase to paid-in 
capital when realized.

        As of December 31, 1997, for federal income tax purposes the 
Company has a net operating loss carryforward of approximately 
$5,943,000 which expires in tax years 2004 through 2010.  For 
California income tax purposes, as of December 31, 1997, the 
Company has a net operating loss carryforward of approximately 
$1,645,000 which expires in tax years 1999 through 2000.  The 
difference between the net operating loss carryforwards for 
federal income tax purposes and for California income tax purposes 
results primarily from a 50% limitation on the California loss 
carryforwards.

        As of December 31, 1997, the Company has research and development 
tax credit carryforwards of approximately $1,886,000 and 
$1,248,000 for federal and state, respectively. The carryforwards 
expire in tax years 2003 through 2012.

(14) Earnings (Loss) per Share 

   The calculation of basic and diluted earnings (loss) per share is as follow
   (in thousands, except per share amounts):

                                      1997       1996       1995
                                    ---------  ---------  ---------

   Net income (loss)                  $4,860     $3,408    ($2,987)
                                    ========== ========== ==========

   Denominator for basic earnings
     (loss) per share--weighted
     average shares                   10,181     10,058     10,095

   Dilutive employee stock options     1,187        657          --
                                    ---------  ---------  ---------
   Denominator for diluted earnings
     (loss) per share                 11,368     10,715     10,095
                                    ========== ========== ==========

   Basic earnings (loss) per share     $0.48      $0.34     ($0.30)
                                    ========== ========== ==========

   Diluted earnings (loss) per share   $0.43      $0.32     ($0.30)
                                    ========== ========== ==========

   Additional information regarding employee stock options is included in Note
<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)


   At December 31, 1997 and 1996, options to purchase 90,200 shares and 
   237,293 shares, respectively, of the Company's common stock were outstandin
   at exercise prices greater than the average market prices of $17.35 and 
   $7.29 for the Company's common stock during 1997 and 1996, respectively.
   These options were not included in the calculation of diluted earnings per
   share because the effect would have been antidilutive. At December 31, 1995
   options to purchase 2,103,006 shares of the Company's common stock were
   outstanding. None of these options were included in the calculation of 
   diluted loss per share because the effect would have been antidilutive.


(15)    Related Party Transaction

The Company has entered into a loan agreement dated January 10, 
1997, with the President and Chief Executive Officer of the 
Company, under which it issued three notes on January 10, 1997, 
January 30, 1997, and March 27, 1997, respectively, for an 
aggregate principal amount of $350,000.  On January 28, 1998, the 
Company issued a new note to replace the above notes, for a 
principal amount of $330,000.  This note, as well as the notes it 
replaced, is secured by a second deed of trust on the officer's 
residence.  The principal and interest accrued on the notes are to 
be repaid on December 31, 2000.  At the time of the issuance of 
the new note, the officer paid the interest accrued to date and 
principal of $20,000.  Interest accrues on the note at the rate of 
5.7% per annum.  The maximum amount outstanding under the loan 
agreement during 1997 was $350,000.

(16)  Segment Information 

      Summarized data for the Company's operations and export sales are as 
      follows (in thousands): 

                                      1997       1996       1995
                                    ---------  ---------  ---------
   Sales and other revenue:
      United States                  $50,867    $42,517    $32,972
      Europe                           8,521      9,201      8,462
      Asia-Pacific                     6,797      7,500      5,620
      Intercompany eliminations      (10,470)    (9,840)    (8,116)
                                    ---------  ---------  ---------
                                     $55,715    $49,378    $38,938
                                    =========  =========  =========

   Operating income (loss):
      United States                   $4,568     $2,698    ($3,457)
      Europe                             368        580       (526)
      Asia-Pacific                       (17)      (126)       (57)
      Intercompany eliminations         (579)      (258)        86
                                    ---------  ---------  ---------
                                      $4,340     $2,894    ($3,954)
                                    =========  =========  =========
<PAGE>
MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements - (Continued)


   Identifiable assets:
      United States                  $59,678    $45,504    $43,310
      Europe                           4,151      6,138      4,347
      Asia-Pacific                     4,026      3,592      3,337
      Intercompany eliminations       (8,800)    (9,191)    (8,249)
                                    ---------  ---------  ---------
                                     $59,055    $46,043    $42,745
                                    =========  =========  =========

   Export sales                       $5,643     $4,883     $5,142
                                    =========  =========  =========

<PAGE>
UNAUDITED QUARTERLY FINANCIAL DATA 

<TABLE> 
<CAPTION> 
                                                          Quarters Ended
                            -------------------------------------------------------------------------------
                                             1997                                     1996
                            --------------------------------------   --------------------------------------
                             Mar 31    Jun 30    Sep 30    Dec 31     Mar 31    Jun 30    Sep 30    Dec 31
                            --------  --------  --------  --------   --------  --------  --------  --------
<S>                         <C>       <C>       <C>       <C>        <C>       <C>       <C>       <C>
Sales and other revenue     $13,006   $13,880   $14,368   $14,461    $10,884   $12,151   $12,910   $13,433
Gross margin                  7,459     7,731     7,761     7,308      6,134     6,960     7,110     7,703
Operating income                973     1,450     1,294       623         68       531     1,007     1,288
Net income                    1,060     1,532     1,375       892        286       630     1,068     1,424
Earnings per share (1):
   Basic                      $0.11     $0.15     $0.14     $0.09      $0.03     $0.06     $0.11     $0.14
   Diluted                    $0.10     $0.14     $0.12     $0.08      $0.03     $0.06     $0.10     $0.13
</TABLE> 


 (1) The earnings per share amounts for the first three quarters 
     of 1997 and all of 1996 have been restated to comply with Statement
     of Financial Accounting Standards No. 128, Earnings per Share. 

<PAGE>
Item 9.Changes in and Disagreements with Accountants on Accounting and 
Financial Disclosure

        Not applicable.

        PART III


Item 10.Directors and Officers of Registrant

                (1)     Identification of Directors:

                The information concerning the Company's directors and nominees 
is incorporated by reference from the section entitled "Proposal No. 1 -- 
Election of Directors" in the Proxy Statement for the 1998 Annual Meeting 
of Stockholders to be held on May 19, 1998 (the Proxy Statement), a copy of 
which will be filed with the Securities and Exchange Commission no later 
than 120 days from the end of the Company's last fiscal year.

                (2)     Identification of Executive Officers:

                See Part I, "Executive Officers of the Registrant"

                The information concerning compliance with Section 16(a) of the 
Exchange Act is incorporated by reference from "Additional Information - 
Compliance with Section 16 (a) of the Securities Exchange Act of 1934" in 
the Proxy Statement.

        * * *

Item 11.        Executive Compensation

                Incorporated by reference from the section entitled "Additional 
Information -- Executive Compensation and Other Information" in the Proxy 
Statement.


Item 12.        Security Ownership of Certain Beneficial Owners and Management

                Incorporated by reference from the section entitled "General -- 
Share Ownership" in the Proxy Statement.


Item 13.        Certain Relationships and Related Transactions

                Incorporated by reference from the section entitled "Additional 
Information - Executive Compensation and Other Information -- Certain 
Relationships and Related Transactions" in the Proxy Statement.

        PART IV


<PAGE>
Item 14.        Exhibits, Financial Statement Schedules and Reports on Form 8-K

                (a)     List of Documents filed as part of this Report

                        1.     Financial Statements  The following consolidated
financial statements and supplemental data are filed in Part II, Item 8 of 
this Annual Report on Form 10-K:

                        Report of Independent Auditors
                        Consolidated Balance Sheets
                        Consolidated Statements of Operations
                        Consolidated Statements of Stockholders' Equity
                        Consolidated Statements of Cash Flows
                        Notes to Consolidated Financial Statements
                        Unaudited Quarterly Data

                        2.      Financial Statement Schedules  The following 
consolidated financial statement schedule for each of the years in the 
three-year period ended December 31, 1997, is filed in Part IV, Item 14(d) 
of this Annual Report on Form 10-K:

                        Report of Independent Auditors on
                                Consolidated Financial Statement Schedule
                        Schedule II Valuation and Qualifying Accounts

All other schedules are omitted because they are not applicable, or not 
required, or because the required information is included in the 
consolidated financial statements or notes thereto.

                3.      (a)     Exhibits  See Exhibit List below.

                        (b)     Form 8-K  The Company filed no reports on 
Form 8-K during the fourth quarter of the fiscal year 1997. 

                EXHIBIT LIST


        Exhibit
        Number  Description

        3.2(1)  Bylaws of the Company.

        3.3(2)  Amended and Restated Certificate of Incorporation of 
the Company filed with the Delaware Secretary of 
State on August 20, 1992.

        3.4(7)  Form of Amended and Restated Certificate of 
Incorporation of the Company, to be filed with the 
Delaware Secretary of State as approved by the 
Company's stockholders at the 1995 Annual Meeting of 
Stockholders.

        4.1(1)  Amended and Restated Information and Registration 
Rights Agreement, dated November 1, 1990, by and 
between the Company and certain investors, including 
Amendment No. 1 to Amended and Restated Information 
and Registration Rights Agreement, dated March 16, 
1992, and Amendment No. 2 to Amended and Restated 
Information and Registration Rights Agreement, dated 
as of August 24, 1992.

        4.2(3)  Specimen Common Stock Certificate.

        10.1(1) Form of Indemnification Agreement.

        10.2    Restated 1987 Stock Option Plan.

        10.3    1993 Employee Stock Purchase Plan.

        10.4(3) Joint Venture Agreement, dated March 31, 1992, by 
and between Molecular Dynamics and Junya Tominaga.  

        10.4A(7)        Amendment to Joint Venture Agreement, dated August 
18, 1994, by and between Molecular Dynamics, Inc. 
and Junya Tominaga.

        10.5(1) International Distributor Agreement, dated 
October 26, 1988, by and between Molecular Dynamics 
Ltd. and Paul Bucher, Analytik and Biotechnologie.  

        10.6(1) International Distributor Agreement, dated 
December 31, 1988, by and between Molecular Dynamics 
and Molecular Dynamics, Ltd., including Amendment to 
Distributor Agreement, dated May 1, 1990 and Second 
Amendment to Distributor Agreement, dated April 21, 
1992.  

        10.6A(7)        Third Amendment to Distributor Agreement, dated 
April 23, 1993, by and between Molecular Dynamics, 
Inc. and Molecular Dynamics, Ltd.

        10.7(1) Distributor Agreement, dated December 22, 1989, by 
and between Molecular Dynamics and Molecular 
Dynamics, GmbH, including Amendment to Distributor 
Agreement, dated May 1, 1990.  

        10.7A(7)        Second Amendment to Distributor Agreement, dated 
July 30, 1994, between Molecular Dynamics and 
Molecular Dynamics, GmbH.

        10.9(1) Lease Agreement, dated July 3, 1990, by and between 
Molecular Dynamics and Van Arques Investments, 
including Amendment No. 1 to Lease Agreement, dated 
November 1, 1991, Amendment No. 2 to Lease 
Agreement, dated November 5, 1991, and Amendment 
No. 3 to Lease Agreement, dated April 20, 1992.

        10.16(1)        Distributor Agreement, dated December 4, 1990, by 
and between Molecular Dynamics and Molecular 
Dynamics S.A.

        10.17(1)        OEM Agreement and Software License Agreement, dated 
January 1, 1991, by and between Molecular Dynamics 
and Silicon Graphics, Inc.

        10.18(1)        Technology License Agreement, dated January 16, 
1991, by and between Molecular Dynamics and The 
Regents of the University of California.

        10.19(1)        Technology License Agreement, dated December 19, 
1991, by and among Molecular Dynamics, Dr. Bala 
Manian, Lumisys, Inc. and Biometric Imaging, Inc.

        10.20(1)        License Agreement, dated January 1, 1992, by and 
between Molecular Dynamics and Fuji Photo Film Co., 
Ltd.

        10.22(1)        Foreign Trade Commission, Sale, Lease and Services 
Agreement, dated January 1, 1991, by and between 
Molecular Dynamics and Molecular Dynamics Sales 
Corporation.

        10.23(1)        Export Related Services Agreement, dated January 1, 
1991, by and between Molecular Dynamics and 
Molecular Dynamics Sales Corporation.

        10.24(4)        Agreement for Sale of Assets, dated as of 
October 30, 1992, by and between the Company and 
Newport Corporation.

        10.25(4)        Credit Agreement, dated December 24, 1992, by and 
between the Company and Bank of America National 
Trust and Savings Association.

        10.26(5)        Sublease Agreement, dated April 19, 1993, by and 
between Molecular Dynamics, Inc. and Silicon 
Graphics, Inc.

        10.27*(5)       Technology License Agreement, dated October 20, 
1993, by and between Molecular Dynamics, Inc. and 
The Regents of the University of California.

        10.28*(5)       Joint Development Agreement, dated December 31, 
1993, by and between Molecular Dynamics and Promega 
Corporation.

        10.29*(6)       Warrant Purchase Agreement, dated April 6, 1994, by 
and between Molecular Dynamics, Inc. and Amersham 
Holdings, Inc.

        10.30*(6)       Warrant to Purchase 1,002,000 shares dated April 6, 
1994, by and between Molecular Dynamics, Inc., 
Amersham Holdings, Inc. and Amersham International 
plc.

        10.31*(6)       Standstill Agreement, dated April 6, 1994, by and 
between Molecular Dynamics, Inc., Amersham Holdings, 
Inc. and Amersham International plc.

        10.32*(6)       Collaboration Agreement, dated April 6, 1994, by and 
between Molecular Dynamics, Inc. and Amersham 
International plc.

        10.33*(6)       Co-Development and Co-Promotion Agreement for 
FluorImager Reagents, dated April 6, 1994, by and 
between Amersham International plc and Molecular 
Dynamics, Inc.

        10.34*(6)       Cross Co-Promotion Agreement, dated April 6, 1994, 
by and between Amersham International plc and 
Molecular Dynamics, Inc.

        10.35*(7)       Agreement in Respect of Option, Research and 
Development and Technology License, dated 
December 16, 1994, by and between Molecular 
Dynamics, Inc. and BioLumin Corporation.

        10.36*(7)       Advanced Technology Program Participation Agreement, 
dated January 13, 1995, by and between Molecular 
Dynamics, Inc. and Affymetrix, Inc.

        10.37(8)        Second Sublease by and between Molecular Dynamics, 
Inc. and Tetherless Access, Ltd. dated as of 
September 14, 1995.

        10.38(9)        Settlement Agreement by and between Molecular 
Dynamics, Inc. and Meridian Instruments, Inc. dated 
as of March 20, 1996.

        10.39*(10)      Technology Development and Purchase Agreement 
between SmithKline Beecham and Molecular Dynamics 
dated as of November 18, 1996.

        10.40(10)       Home Loan Agreement between Jay Flatley and 
Molecular Dynamics, Inc. dated January 10, 1997.

10.41#  License Agreement between Molecular Dynamics, Inc. 
and Affymetrix, Inc. dated November 28, 1997.

        22.1(1) Subsidiaries of the Company.

23.1    Consent of KPMG Peat Marwick LLP.

"*" on such exhibits indicates that portions have 
been omitted for which confidential treatment has 
been granted

"#" on such exhibits indicates that portions have 
been omitted for which confidential treatment has 
been requested and filed separately with the 
Securities and Exchange Commission

(1)             Incorporated by reference from an identically 
numbered exhibit filed with the Company's Registration 
Statement on Form S-1 (File No. 33-46497) declared effective by 
the Securities and Exchange Commission on February 5, 1993.

(2)             Incorporated by reference from an identically 
numbered exhibit filed with Amendment No. 1 to the Company's 
Registration Statement on Form S-1 (File No. 33-46497) declared 
effective by the Securities and Exchange Commission on February 
5, 1993.

(3)             Incorporated by reference from an identically 
numbered exhibit filed with Amendment No. 2 to the Company's 
Registration Statement on Form S-1 (File No. 33-46497) declared 
effective by the Securities and Exchange Commission on February 
5, 1993.

(4)             Incorporated by reference from an identically 
numbered exhibit filed with Amendment No. 3 to the Company's 
Registration Statement on Form S-1 (File No. 33-46497) declared 
effective by the Securities and Exchange Commission on 
February 5, 1993.

(5)             Incorporated by reference from an identically 
numbered exhibit filed with the Company's Annual Report on 
Form 10-K (File No. 0-19955) filed with the Securities and 
Exchange Commission on April 4, 1994, as amended by the 
Company's Amendment to Annual Report on Form 10-K/A, as filed 
with the Securities and Exchange Commission on May 12, 1994.

(6)             Incorporated by reference from an identically 
numbered exhibit filed with the Company's Quarterly Report on 
Form 10-Q for the quarterly period ended July 3, 1994 (File No. 
0-19955) filed with the Securities and Exchange Commission on 
August 17, 1994.

(7)                     Incorporated by reference from an identically 
numbered exhibit filed with the Company's Annual Report on Form 
10-K (File No. 0-19955), filed with the Securities and Exchange 
Commission on April 3, 1995, as amended by the Company's 
Amendment to Annual Report on Form 10-K/A, filed with the 
Securities and Exchange Commission on May 5, 1995, as further 
amended by the Company's Second Amendment to Annual Report on 
Form 10-K/A-2, as filed with the Securities and Exchange 
Commission on August 14, 1995. 

(8)             Incorporated by reference from an identically 
numbered exhibit filed with the Company's Annual Report on Form 
10-K (File No. 0-19955), filed with the Securities Exchange 
Commission on March 29, 1996, as amended by the Company's 
Amendment to Annual Report on Form 10-K/A, filed with the 
Securities and Exchange commission on April 4, 1996, as further 
amended by the Company's Second Amendment to Annual Report on 
form 10-K/A-2, as filed with the Securities and Exchange 
Commission on January 10, 1997.

(9)             Incorporated by reference from an identically 
numbered exhibit filed with the Company's Quarterly Report on 
Form 10-Q for the quarterly period ended June 30, 1996 (File 
No. 0-19955) filed with the Securities and Exchange Commission 
on August 13, 1996, as amended by the Company amendment to 
Quarterly Report on From 10-Q/A, filed with the Securities and 
Exchange Commission on January 10, 1997.

(10)    Incorporated by reference from an identically 
numbered exhibit filed with the Company's Annual Report on Form 
10-K (File No. 0-19955), filed with the Securities Exchange 
Commission on March 28, 1997, as amended by the Company's 
Amendment to Annual Report on Form 10-K/A, filed with the 
Securities and Exchange commission on March 31, 1997.


<PAGE>
                                SIGNATURES

                  Pursuant to the requirements of Section 13 or 15(d) 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, in 
Sunnyvale, California on this 25th day of March, 1998. 

                                   MOLECULAR DYNAMICS, INC. 


                                   By:      /s/ Jay Flatley 
                                            ------------------------------------
                                            Jay Flatley 
                                            President, Chief Executive Officer, 
                                            Chief Operating Officer, Acting 
                                            Chief Financial Officer and Member 
                                            of the Board of Directors 

                  Pursuant to the requirements of the Securities Exchange Act of
1934, this report has been signed by the following persons on behalf of the 
Registrant and in the capacities and on the dates indicated. 
<TABLE>
<CAPTION>
       Signature                        Title                        Date
- -----------------------  ------------------------------------  ----------------
<S>                      <C>                                   <C>
/s/ Jay Flatley          President, Chief Executive            March 25, 1998
- -----------------------    Officer, Chief Operating Officer,
(Jay Flatley)            Acting Chief Financial Officer
                         and Director (Principal Executive
                         and Financial Officer)

/s/ Lynne R. Wagoner     Director of Finance                   March 25, 1998
- -----------------------    (Principal Accounting Officer)
(Lynne R. Wagoner)

/s/ James M. Schlater    Chairman of the Board of Directors    March 25, 1998
- -----------------------
(James M. Schlater)

/s/ C. Woodrow Rea       Director                              March 25, 1998
- -----------------------
(C. Woodrow Rea)

/s/ Robert Keeley        Director                              March 25, 1998
- -----------------------
(Robert Keeley)

/s/ Janice M. LeCocq     Director                              March 25, 1998
- -----------------------
(Janice M. LeCocq)

/s/ Lester John Lloyd    Director                              March 25, 1998
- -----------------------
(Lester John Lloyd)

</TABLE>
<PAGE>

        INDEX TO FINANCIAL STATEMENT SCHEDULE

        Page 
        Number

Report of Independent Auditors on Consolidated
  Financial Statement Schedule                  II-1 
Schedule II Valuation and Qualifying Accounts   II-2 




Item 14(d).  FINANCIAL STATEMENT SCHEDULE

Report of KPMG Peat Marwick LLP, Independent Auditors, on Financial 
Statement Schedule


        Report of Independent Auditors



The Board of Directors and Stockholders
Molecular Dynamics, Inc.:


Under date of January 28, 1998, we reported on the consolidated balance 
sheets of Molecular Dynamics, Inc. and subsidiaries as of December 31, 1997 
and 1996, and the related consolidated statements of operations, 
stockholders' equity, and cash flows for each of the years in the three-
year period ended December 31, 1997.  In connection with our audits of the 
aforementioned consolidated financial statements, we also audited the 
related consolidated financial statement schedule as listed in the 
accompanying index.  This consolidated financial statement schedule is the 
responsibility of the Company's management.  Our responsibility is to 
express an opinion on this consolidated financial statement schedule based 
on our audits.

In our opinion, such consolidated financial statement schedule, when 
considered in relation to the basic consolidated financial statements taken 
as a whole, presents fairly, in all material respects, the information set 
forth therein.


                                                 KPMG Peat Marwick LLP

Mountain View, California
January 28, 1998


<PAGE>
                                                                     SCHEDULE II

                    MOLECULAR DYNAMICS, INC. AND SUBSIDIARIES 

                        Valuation and Qualifying Accounts 
          For the three years in the period ended December 31, 1997

<TABLE>
<CAPTION>
                                 Balance at  Charged to                 Balance
                                  Beginning   Costs and                 at End
          Description              of Year    Expenses    Deductions    of Year
- -------------------------------- ----------- ----------- ------------ -----------
<S>                              <C>         <C>         <C>          <C>
Year Ended December 31, 1995:

 Allowance for doubtful accounts   $251,000     $30,000      $  --      $281,000

 Accrued warranty costs            $737,000    $859,000    ($929,000)   $667,000


Year Ended December 31, 1996:

 Allowance for doubtful accounts   $281,000     $30,000     ($57,000)   $254,000

 Accrued warranty costs            $667,000  $1,669,000  ($1,292,000) $1,044,000


Year Ended December 31, 1997:

 Allowance for doubtful accounts   $254,000     $30,000      ($2,000)   $282,000

 Accrued warranty costs          $1,044,000  $2,021,000  ($1,871,000) $1,194,000

</TABLE>




                                                   EXHIBIT 23.1

Consent of Independent Auditors


The Board of Directors
Molecular Dynamics, Inc.:

We consent to incorporation by reference in the registration statements 
(Nos. 33-57966, 33-80042, 33-95430, 333-09561, 333-21967, and 333-35145) 
on Form S-8 of Molecular Dynamics, Inc. of our reports dated January 28, 
1998 relating to the consolidated balance sheets of Molecular Dynamics, 
Inc. and subsidiaries as of December 31, 1997 and 1996, and the related 
consolidated statements of operations, stockholders' equity, and cash 
flows for each of the years in the three-year period ended December 31, 
1997, and the related consolidated financial statement schedule, which 
reports appear in the December 31, 1997 annual report on Form 10-K of 
Molecular Dynamics, Inc.



                                                    KMPG Peat Marwick LLP

Mountain View, California
March 25, 1998




                                                        Exhibit 10.41

"[**]" INDICATES THAT CONFIDENTIAL MATERIAL HAS BEEN OMITTED AND FILED 
SEPARATELY IN A REQUEST FOR CONFIDENTIAL TREATMENT WITH THE SECURITIES 
AND EXCHANGE COMMISSION.


LICENSE AGREEMENT



Affymetrix, Inc.
and
Molecular Dynamics, Inc.


Contents

DEFINITIONS                                            3

RECITALS                                                6

TECHNICAL INFORMATION                                  6

GRANTS                                                  7

RECORDS, ACCOUNTS AND PAYMENTS                          15

DURATION OF AGREEMENT                                  16

MISCELLANEOUS                                          17

Exhibit 1                                               21

        2                                               22

        3                                               23

        4                                               24

        5                                               27

        6                                               28


THIS AGREEMENT is effective as of                         ("Effective 
Date") between Affymetrix, Inc., a California corporation, hereinafter 
referred to as "Affymetrix" and Molecular Dynamics, Inc., a Delaware 
corporation, hereinafter referred to as "MD".

1        DEFINITIONS tc  \l 1 "DEFINITIONS" 
Whenever used in this Agreement, the following terms shall have 
the meanings set forth below:

1.1     "Affiliates" as applied to Affymetrix shall mean Affymetrix, Inc., 
a California U.S.A. corporation, and all present and future 
companies (other than Affymetrix) whose outstanding stock carrying 
the right to vote for or appoint directors thereof is fifty 
percent (50%) or more owned or controlled, directly or indirectly, 
by Affymetrix. "Affiliates" as applied to MD shall mean Molecular 
Dynamics, Inc., a Delaware corporation, and all present and future 
companies (other than MD) whose outstanding stock carrying the 
right to vote for or appoint directors thereof is eighty percent 
(80%) or more owned or controlled, directly or indirectly, by MD, 
but only for so long as such ownership or control exists.  In the 
case of non-corporate entities, "Affiliates" shall refer to 
those entities where the power to control and direct management of 
the entity is eighty percent (80%) or more owned or controlled, 
directly or indirectly, by the referenced entity.

1.2     "Array Maker" shall mean a device designed to fabricate Nucleic 
Acid Arrays by Mechanical Fabrication Methods and specifically 
configured to fabricate only Nucleic Acid Arrays only by 
Mechanical Fabrication Methods, and otherwise subject to the 
restrictions herein.

1.3     "Category 1 Patent" shall refer to a United States Patent 
issuing on U.S. Ser. No. [**] reciting, inter alia, [**], or a 
United States patent claiming substantively the subject matter of 
such application.

1.4     "Category 2 Patent" shall refer to a) a United States Patent 
issuing on U.S. Ser. No. [**] reciting, inter alia, [**], or a 
United States patent claiming substantively the subject matter of 
such application; or b) a United States Patent issuing on U.S. 
Ser. No. [**] reciting, inter alia, [**]; or c)  a United States 
Patent issuing on U.S. Ser. No. [**] reciting, inter alia, [**], 
or a United States patent claiming substantively the subject 
matter of such application; or d) a United States Patent issuing 
on U.S. Ser. No. [**] reciting, inter alia, [**], or a United 
States patent claiming substantively the subject matter of such 
application.

1.5     "Expression Analysis" means the measurement of the presence, 
absence, or level of an expressed messenger RNA in cells.


1.6     "GATC Compliant" shall refer to Nucleic Acid Arrays, software, 
or Systems meeting the standards set forth in the GATC Agreement 
executed on a substantially even date herewith, provided that 
Nucleic Acid Arrays or Systems need not meet such standards when 
delivered before [**]. In the event that one or both Parties cease 
to be a party to such  GATC Agreement , the Parties will negotiate 
in good faith to provide substitute specifications for 
interoperability of their respective Systems, Nucleic Acid Arrays, 
and associated software.  In the event that the GATC Agreement is 
not executed by the Parties on a substantially even date, the 
Parties will agree upon specifications for interoperability 
substantially based on the draft of the GATC Agreement in place on 
the Effective Date, such agreement to be reached in good faith by 
the Parties by [**].

1.7     "Gene" shall refer to a nucleic acid sequence encoding a 
distinct messenger RNA and protein as well as polymorphic variants 
of such sequence, provided that such polymorphic variants must 
have at least 99.9% homology with the underlying gene.

1.8     "Initial Period" shall mean, with respect to a particular Array 
Maker, the time period beginning upon the contractual commitment 
of MD to transfer such Array Maker to a third party (provided that 
such time must begin before [**]), and a) ending [**] from the 
date of such commitment, when such commitment is made between [**] 
and [**], or b) ending [**] for those Array Makers for which 
contractual commitments of MD are made before [**].  For those 
Array Makers for which MD contractually commits on or after [**], 
there shall be no Initial Period.

1.9     "Mechanical Fabrication Methods" shall mean any method for the 
fabrication of Nucleic Acid Arrays on a solid support by placement 
of fully synthesized nucleic acids (clonal polynucleotides or 
other presynthesized polynucleotides) having more than [**] bases 
each, solely through mechanically isolated deposition of such 
fully synthesized nucleic acids at specific locations on the 
array.  Without limiting the above, it is understood that the 
synthesis of an array in which regions of an array are activated 
or prepared for placement of materials by means of controlled 
direction of electromagnetic energy at a portion of a support is 
not a Mechanical Fabrication Method.

1.10    "Metered Period" shall mean any period other than the Initial 
Period.

1.11    "Nucleic Acid Array" shall mean an array of diverse nucleic acids, 
each having at least [**], at defined locations on a solid support 
and fabricated by Mechanical Fabrication Methods, provided that in 
no part of such solid support may such diverse nucleic acids be 
arranged at a density of more than [**] locations per square 
centimeter, and all of the nucleic acids in any one Nucleic Acid 
Array may represent no more than [**] Genes.

1.12    "Party(ies)" shall refer to Affymetrix and/or MD. 

1.13    "Patent Rights" shall mean claims, or the equivalent of claims of 
"Affymetrix' Patent Rights" or "MD's Patent Rights," as 
appropriate, directed to and/or primarily useful in connection 
with Nucleic Acid Arrays.  "Affymetrix' Patent Rights" shall be 
those arising from, and only those arising from, the patents and 
applications listed in Exhibit 1, as well as the inventions 
disclosed and claimed therein, and all continuations, 
continuations-in-part, divisions, reexaminations, and reissues 
thereof, and any corresponding foreign patent applications that 
may be filed in the future claiming priority thereto and any 
patents, patents of addition, or other equivalent foreign patent 
rights issuing, granted or registered thereon that are based on 
one or more of the patents or applications in Exhibit 1, including 
the patent rights of third parties for which Affymetrix obtains 
the right to grant sublicenses pursuant to sublicensing rights in 
connection with and obtained as part of a license grant of the 
Affymetrix Patent Rights to such third party pursuant to terms 
equivalent to Section 4. "MD's  Patent Rights" shall be those 
arising from, and only those arising from, the patents and 
applications listed in Exhibit 2, as well as and the inventions 
disclosed and claimed therein, and all continuations, 
continuations-in-part, divisions, and reissues thereof, and any 
corresponding foreign patent applications that may be filed in the 
future claiming priority thereto and any patents, patents of 
addition, or other equivalent foreign patent rights issuing, 
granted or registered thereon.  The term "Patent Rights" as 
defined above includes only said claims under which the herein-
designated company has the right at any time during the life of 
this Agreement to make the herein-contained grants, in each 
instance to the extent, and subject to the terms and conditions, 
including the obligation to account to or make payments to others, 
under which the herein-designated company shall have such right.  

1.14    "Research Market Array Maker" shall mean an Array Maker designed, 
manufactured, or sold to (and only to) not-for-profit research 
institutions, specifically including university and government 
research institutions, (without right of subsequent transfer) for 
lower-throughput and lower density research purposes than Array 
Makers otherwise licensed hereunder.  Research Market Array Makers 
shall not be available for sale or transfer to third parties 
before [**].  Research Market Array Makers shall be subject to the 
terms and conditions herein relating to Array Makers except that 
a) such Research Market Array Makers shall be adapted to make 
Nucleic Acid Arrays not be configured to fabricate Nucleic Acid 
Arrays having more than [**] genes per array and not more than 
[**] array elements per square centimeter, and b) shall be subject 
to the lower royalty provisions of Section 5.9 herein.

1.15    "System" shall mean one or more readers, hybridization devices, 
computer work stations, and/or single copies of software 
associated therewith specifically configured (but not necessarily 
exclusively configured) for use with Nucleic Acid Arrays and to be 
used for extraction and processing of data from such Nucleic Acid 
Arrays (and not including, for example, Array Makers).

1.16    "Technical Information" shall mean:  (a) the software identified 
in Exhibit 3 in object code form; (b) associated documentation 
related to such software directed to and/or primarily useful in 
connection with Nucleic Acid Arrays; and (c) reasonable 
enhancements thereto heretofore or hereafter acquired by the 
designated party prior to [**] after the Effective Date of the 
Agreement, as well as the copyright and trade secret rights 
therein.  Notwithstanding the above, "Technical Information" 
includes only such software, associated documentation, and 
enhancements as the herein-designated party has the right at any 
time during the life of this Agreement to disclose, and in each 
instance only to the extent that and subject to the terms and 
conditions, including the obligation to account to or make 
payments to others, under which the herein-designated party shall 
have the right to disclose such information to others.

2       RECITALS tc  \l 1 "RECITALS" 

2.1     MD has requested that Affymetrix grant MD a license under 
Affymetrix's Patent Rights and Technical Information to make, use, 
import, lease, distribute,  and sell Nucleic Acid Arrays, as well 
as associated Systems and Array Makers.  Affymetrix is willing to 
grant such a license to MD on the provisions herein set forth.

3       TECHNICAL INFORMATION tc  \l 1 "TECHNICAL INFORMATION" 

3.1     Affymetrix has developed Affymetrix' Technical Information which 
includes a software suite for data extraction and image 
processing.  Affymetrix shall, promptly following execution of 
this Agreement and in accordance herewith, permit MD to utilize 
Affymetrix' Technical Information for the purpose of the 
commercial development of Nucleic Acid Arrays and associated 
Systems.  Affymetrix shall thereafter, from time to time and upon 
MD's request, make available to MD any additional Technical 
Information developed by or on behalf of Affymetrix.   Affymetrix 
will deliver object  code versions of the software associated with 
the Technical Information to MD.  MD will license software only in 
object code form.

3.2     Affymetrix and MD agree:  (a) to use reasonable efforts to protect 
the confidential nature of the other Party's Technical 
Information; (b) not to disclose the same to others, except to the 
extent reasonably necessary to carry out operations licensed 
hereunder; and (c) to use the same only pursuant to the terms of 
this Agreement.  However, the foregoing commitments shall not 
extend to any portion of Technical Information (i) which was in 
the possession of the receiving Party prior to receipt of same 
without an obligation of confidentiality; (ii) which is now, or 
hereafter becomes through no act or failure to act on the part of 
the receiving Party, generally known to the nucleic acid array 
industry on a non-confidential basis; or (iii) which is hereafter 
disclosed to the disclosing Party by others if said others have 
imposed no restriction on disclosure by the disclosing Party; or 
(iv) is independently developed by the Party; or (v) is required 
to be disclosed pursuant to court or agency order. 

3.3     From time to time during the life of this Agreement, at 
Affymetrix' request, MD shall make MD's Technical Information 
available to Affymetrix.

3.4     Affymetrix and MD will advise the other with reasonable promptness 
and detail of Technical Information developed after the Effective 
Date.

4       GRANTS tc  \l 1 "GRANTS" 

4.1     Subject to the terms and conditions of this Agreement, Affymetrix 
grants to MD a nontransferable, nonexclusive, worldwide, royalty 
bearing license under Affymetrix' Patent Rights and Technical 
Information to make, (but not have made), use for internal array 
development programs and pharmaceutical or diagnostic research 
(such use rights not including the right to license or distribute 
expression databases, or perform therapeutic or pharmaceutical 
development on a service or similar basis), import, lease, 
distribute, offer for sale, and sell (in the case of products 
other than software) a) GATC Compliant Nucleic Acid Arrays, and b) 
GATC Compliant Systems for use with and only for use with GATC 
Compliant Nucleic Acid Arrays licensed hereunder, all to the 
extent that such Nucleic Acid Arrays or Systems are covered by 
Affymetrix' Patent Rights and/or Affymetrix's Technical 
Information.  Such license shall not include the right to 
sublicense, except that MD shall have the right to sublicense 
single copies of Affymetrix' Technical Information (without the 
right to further sublicense) for use with GATC Compliant Systems 
leased, sold, or transferred by MD pursuant to this Agreement.   
It is understood that the rights conveyed herein do not include 
the right for MD to use, have used, or license or otherwise permit 
any third party to use the Nucleic Acid Arrays (including those 
made by Array Makers) for database development for external 
distribution, service based target or drug discovery, or product 
development of other nucleic acid analysis technologies.  It is 
further understood that while the sale of Systems or licensing of 
Technical Information to third parties is permitted even though 
such Systems are or may be useful to read, prepare, or process 
data from nucleic acid arrays having a density greater than the 
density of Nucleic Acid Arrays licensed herein or in applications 
other than the Nucleic Acid Arrays licensed herein (such as those 
made by Affymetrix), no express or implied license to make, have 
made, use, import, lease, distribute, offer for sale, sell or 
transfer such higher density nucleic acid arrays or nucleic acid 
arrays for other applications is granted or is to be inferred or 
implied hereunder except as to those nucleic acid arrays made by 
Affymetrix or licensed by Affymetrix.  Notwithstanding anything to 
the contrary in this Section 4.1, Nucleic Acid Arrays are licensed 
hereunder only to the extent that such Nucleic Acid Arrays are a) 
used, leased, distributed, or sold only for research use only; and 
b) designed and marketed only for use and used in Expression 
Analysis studies; and c) are for single use only, and d) are sold, 
leased, or otherwise transferred with contractual and label 
restrictions on use consistent with this agreement, which 
provisions may be reasonably reviewed by Affymetrix.  It is 
understood that MD may have subassemblies made under this license 
that would not, but for this license, infringe the intellectual 
property rights granted herein.  The Parties will agree to 
appropriate royalty and support terms for additional copies of the 
Technical Information to be used in the Systems.

4.2     Subject to the terms and conditions of this Agreement, Affymetrix 
grants to MD a nontransferable, nonexclusive, worldwide, royalty-
free license under Affymetrix' Patent Rights to make (but not have 
made), and use Array Makers for internal array development and 
manufacturing development programs. It is understood that MD may 
have subassemblies made under this license that would not, but for 
this license, infringe the intellectual property rights granted 
herein.  

4.3     During the term and subject to the terms and conditions of this 
Agreement and during the Initial Period or the Metered Period as 
applicable (if any), Affymetrix grants to MD a nontransferable, 
nonexclusive, worldwide, royalty bearing license under Affymetrix' 
Patent Rights and Technical Information to make, (but not have 
made), use for internal array development programs and 
pharmaceutical or diagnostic research (such use rights not 
including the right to license or distribute expression databases, 
or perform therapeutic or pharmaceutical development on a service 
or similar basis), import, lease, distribute, offer for sale, and 
sell (in the case of licensed products other than software) Array 
Makers for the manufacture of GATC Compliant Nucleic Acid Arrays 
to the extent that such Array Makers or the use of such Arrays 
Makers or Nucleic Acid Arrays made therewith (or use thereof) are 
covered by Affymetrix' Patent Rights and/or Affymetrix' Technical 
Information.  Such license shall not include the right to 
sublicense.  Such license shall be considered to include a license 
for the Array Makers sold prior to the date of this Agreement only 
to the entities in Exhibit 5.  It is understood that the rights 
conveyed herein do not include the right for MD or those acquiring 
Array Makers pursuant to this Agreement to use, have used, or 
license or otherwise permit any third party to use the Nucleic 
Acid Arrays made with such Array Makers for database development 
for external distribution, for service based target or drug 
discovery, or manufacture Nucleic Acid Arrays for resale or other 
transfer to third parties.  Nucleic Acid Arrays made with the 
Array Makers licensed hereunder will be licensed only to the 
extent that such Nucleic Acid Arrays are a) used, leased, 
distributed, or sold for research use only; and b) designed, 
marketed and used only in Expression Analysis studies; and c) are 
for single use only, and d) are sold or otherwise transferred with 
contractual and label restrictions on use consistent with this 
agreement, which provisions may be reasonably reviewed by 
Affymetrix.  In no event may MD transfer more than [**] Array 
Makers pursuant to the license hereunder to a single third party 
or its Affiliates, except as to [**], to which MD will not 
transfer more than [**] Array Makers pursuant to the license 
hereunder when such Array Makers are to be licensed in an Initial 
Period.  During the Metered Period, MD may provide additional 
Array Makers to its customers. It is understood that a particular 
customer of MD may wish to order more than the above recited [**] 
or [**] Array Makers, and when MD is contractually obligated to 
provide such Array Makers they may be provided by MD, provided 
that any such Array Makers in excess of the above limits will be 
considered as being in the Metered Period upon their delivery to 
the customer of MD.  In the event that MD is committed to deliver 
more than the above numbers of Array Makers before the Effective 
Date to the customers in Exhibit 5, MD and Affymetrix will 
negotiate for appropriate metering rates for such Array Makers 
pursuant to Section 5, upon which such Array Makers will be 
licensed hereunder. It is understood that MD may have 
subassemblies made under this license that would not, but for this 
license, infringe the intellectual property rights granted herein.

4.4     Research Market Array Makers will be subject to the provisions of 
this Agreement related to Arrays Makers.  In addition, Research 
Market Array Makers may be used and are licensed only to the 
extent they are used in the generation of scientific information 
for general publication, and without pursuit of intellectual 
property rights thereon.  Any further uses, including the 
patenting of information or discoveries created with the Research 
Market Array Maker, the creation of arrays for sale to third 
parties, the performance of services or tests on a paid basis for 
third parties, and the creation of database or informatics 
products for sale to third parties will not be licensed hereunder 
except to the extent that any such purchaser agrees to abide by 
the terms of Affymetrix' then current Academic User Center (or 
then equivalent) agreement providing for Affymetrix rights to 
either a) have access to such intellectual property, or b) share 
in royalties generated by such intellectual property.  Each 
Research Market Array Maker sold, leased, or otherwise transferred 
by MD will be sold with written consent to and conditioned upon 
such terms.

4.5     It is understood that MD may wish to perform a service business 
using Nucleic Acid Arrays during the Term of this Agreement.  
Affymetrix will negotiate in good faith to license such service 
business at rates otherwise consistent with its then current 
pricing models.

4.6     MD may grant sublicenses (without the right to further sublicense) 
to the Technical Information in association with the bona fide 
sale, lease, or transfer of Systems or Nucleic Acid Arrays, 
provided that any such license of the Technical Information: a) 
will allow any sublicensee access only to object code versions of 
any software included within such grant; and b) any such grant 
includes provisions the same as or substantially identical to 
those in Exhibit 4.  MD will maintain all trademark and copyright 
notices of Affymetrix in such Technical Information sublicensed to 
a third party.

4.7     Affymetrix shall provide support for the Technical Information 
commensurate with standard industry practices (under standard 
terms and conditions) to MD, its Affiliates, and their customers 
who have received Technical Information in connection with the 
bona fide sale, lease, or transfer of Systems or Nucleic Acid 
Arrays by MD or its Affiliates pursuant to the licenses granted 
hereunder.  In addition, upon MD's request, Affymetrix shall 
escrow a source code version of the Technical information with an 
escrow agent mutually agreeable to the parties, which escrowed 
source code shall be accessible to MD in the event that Affymetrix 
shall default on or be unable to perform its support obligations, 
or as a result of insolvency, bankruptcy, or if Affymetrix 
otherwise ceases in the relevant business.

4.8     MD and Affymetrix will reasonably meet and confer to determine if 
it is reasonably feasible to retrofit Systems that are not GATC 
Compliant, but which are licensed hereunder, to permit such 
Systems to utilize probe arrays of low and/or high density made by 
Affymetrix.

4.9     In the event that a third party brings a lawsuit or is otherwise 
involved in administrative or other similar disputes with a Party 
regarding intellectual property rights, the Party that is subject 
to such action may provide written notification of such action, 
along with notification that it wishes to discontinue sales, if 
any, of products that would otherwise have been licensed hereunder 
to such third party, and terminating the licenses herein with 
respect to such third party.  The Party receiving such notice 
will, subject to prior contractual commitments, use reasonable 
efforts to discontinue sales of products licensed hereunder to 
such third party or, if no such sales have occurred, to prevent 
such sales in the future.  MD acknowledges that Affymetrix has 
provided notice of two such third parties, and MD understands that 
any products transferred to such third parties are not licensed 
hereunder.

4.10    Subject to the terms and conditions of this Agreement, MD grants 
to Affymetrix, which grant is extendible by Affymetrix to its 
Affiliates without accounting therefor to MD, a worldwide, 
nonexclusive  license under MD's Patent Rights to make, have made, 
use, import, lease, distribute, offer for sale, and sell high 
density arrays of nucleic acids and systems for use therewith to 
the extent used to analyze such high density arrays of nucleic 
acids.

4.11    It is recognized that up to [**] may be sold by MD to [**] 
pursuant to an existing contract between MD and [**] and in 
accordance with the rights and obligations of this Agreement.  The 
Parties recognize, however,  that [**] may not agree to be bound 
by all of the the terms of this license relating to database 
distribution in Section 4.3.  To the extent that [**] does not 
comply with the database distribution restrictions in Section 4.3 
and to the extent that such [**] are otherwise sold by MD in 
accordance with this Agreement,  Affymetrix, on behalf of itself, 
and its Affiliates, heirs, executors, assigns, agents and 
representatives hereby fully and forever releases MD and its 
heirs, executors, assigns, agents, and representatives from any 
claim or cause of action, under any thery of liability, known or 
unknown, fixed or contingent, that any of them may have arising 
from or relating to Affymetrix Patent Rights and/or Technical 
Information from the beginning of time up to the Effective Date  
on account of [**] lack of non-compliance, performance, or lack of 
agreement to comply with such database distribution restrictions 
with respect to such three instruments. Such release shall in no 
manner be construed to extend to [**] whether by implication, 
license, or otherwise and, further, shall not extend to future 
acts of MD beyond the supply of such [**] to [**].

4.12    MD, on behalf of itself, and its Affiliates, heirs, executors, 
assigns, agents and representatives hereby fully and forever 
releases Affymetrix and its heirs, executors, assigns, agents and 
representatives from any claim or cause of action, under any 
theory of liability, known or unknown, fixed or contingent, that 
any of them may have arising from or relating to MD Patent Rights 
from the beginning of time up to the Effective Date on account of 
the manufacture, use, or sale of high density nucleic acid arrays 
and systems to analyze such high density nucleic acid arrays.

4.13    Subject to the terms and conditions of this Agreement, MD grants 
to Affymetrix the royalty-free right to grant nonexclusive 
licenses under MD's Patent Rights to others licensed by Affymetrix 
under Affymetrix' Patent Rights for use with Nucleic Acid Arrays 
and Systems; provided, however, that Affymetrix may grant such 
licenses under MD's Patent Rights only to others whose Patent 
Rights are included within the Affymetrix Patent Rights.  

4.14    Nothing in this Agreement shall be construed to obligate either 
party to sue alleged infringers under such party's Patent Rights 
and Technical Information.  Any determination to take any action 
against such alleged infringers shall be in such party's sole 
discretion.

4.15    MD shall include with all Nucleic Acid Arrays (including Nucleic 
Acid Arrays made with Array Makers)  and Systems leased, 
distributed, sold, or otherwise transferred hereunder reasonable 
package markings, product markings, contractual restrictions, 
and/or user manual instructions indicating that such products are 
licensed:  (a) for research purposes only; (b) only for Expression 
Analysis studies or studies otherwise licensed by Affymetrix (it 
being understood that the Parties may chooses upon mutual written 
consent to modify this limitation); and (c) for single use only, 
and (d) with restrictions on the distribution of databases or 
services based on the use of arrays herein, and (e) only 
consistent with the licenses herein.  MD shall diligently police 
and enforce such restrictions.  

4.16    MD shall attach a label on each Nucleic Acid Array, System and/or 
associated documentation sold, leased, or otherwise transferred 
hereunder reasonably reflecting patent numbers of a) issued US 
device patents covering such product, and b) other appropriate 
intellectual property rights notices, and will reasonably modify 
such label periodically at the direction of Affymetrix. Affymetrix 
shall attach a label on each Nucleic Acid Array, System and/or 
associated documentation reasonably reflecting patent numbers of 
a) issued US device patents covering such product, and b) other 
appropriate intellectual property rights notices, and will 
reasonably modify such label periodically at the direction of MD.

4.17    The licenses granted herein are granted on the understanding that 
MD will use commercially reasonable efforts to develop, 
manufacture, and market Nucleic Acid Arrays and Systems, and MD 
agrees to use such commercially reasonable efforts to develop, 
manufacture, and market Nucleic Acid Arrays, and Systems.  If 
during the term of this Agreement Affymetrix reasonably believes 
that MD has discontinued commercially reasonable efforts to 
develop, manufacture, and market Nucleic Acid Arrays and/or 
Systems, Affymetrix may provide written notice to MD of such 
reasonable belief, along with notification that it intends to 
terminate the licenses herein  In the event that MD disagrees with 
such assertions by Affymetrix, MD may provide reasonable evidence 
of its continued reasonable commercial efforts under suitable 
terms of confidentiality.  In the absence of such reasonable 
evidence, Affymetrix may, thereafter, on 6 months written notice, 
terminate this Agreement. 

4.18    MD may extend the licenses granted herein to its Affiliates 
provided such Affiliates agree in writing to be bound by the terms 
and conditions of this Agreement, and further provided that MD 
agrees to be liable and indemnify Affymetrix for the activities of 
such Affiliates.

5       FEES tc  \l 1 "FEES" 

5.1     At the time and in the manner hereinafter provided, MD shall pay 
to Affymetrix for each Nucleic Acid Array a) leased, sold, or 
otherwise transferred pursuant to the license granted under 
Section 4 hereof, or b) used for internal pharmaceutical research 
and development purposes (but not used solely for development of 
Arrays Makers, Systems or Nucleic Acid Arrays), a royalty pursuant 
to Table 1.  The royalty shall be payable based on [**] prices in 
Table 1 are the number of dollars to be paid to Affymetrix [**]. 


Royalty [**]

       [**]          [**]

             [**]          [**]        [**]          [**]


[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]
[**]         [**]          [**]        [**]          [**]



5.2     The royalties and operating fees, and the licenses herein, cover 
arrays made with up to [**].  In the event that MD reasonably 
believes at a future date that [**] are reasonably required to 
competitively market Nucleic Acid Arrays or Array Makers, MD and 
Affymetrix will reasonably confer and agree upon appropriate 
royalty levels for such Nucleic Acid Arrays and/or Array Makers 
using the royalty and operating fee structures set forth herein as 
guiding factors, provided that in no event will the licenses 
granted herein cover Nucleic Acid Arrays representing more than 
[**] unless agreed to in writing by Affymetrix.  In addition, if 
MD is required to license probe array based intellectual property 
from third parties that make the above royalty rates 
unsupportable, MD and Affymetrix will negotiate in good faith with 
each other to modify the above royalty structure and/or the third 
party royalty rates that should be paid.

5.3     In the event that a) MD reasonably believes that it cannot support 
the above royalty rates and operating fees under a reasonable 
business model for the sale, lease, or transfer of Nucleic Acid 
Arrays sold pursuant to this Agreement after commercial efforts to 
implement such business model as a result of such royalty rates, 
and b) Affymetrix is not taking reasonable efforts to mitigate 
infringement of its intellectual property rights,  MD will provide 
written notification to Affymetrix, along with reasonable 
documentation of the basis of such assertion.  MD and Affymetrix 
will reasonably confer and identify alternative license fees and 
or structures to support a reasonable business model for the sale 
of Nucleic Acid Arrays licensed pursuant to this Agreement.

5.4     If in any calendar year following the [**] anniversary of this 
Agreement the royalties and operating fees generated by MD's 
licensed operations hereunder are less than [**], then Affymetrix 
shall have the right, exercisable within the period of ninety (90) 
days following the end of the said year, to terminate this 
Agreement on sixty (60) days' written notice to MD; provided, 
however, that MD shall have the right but not the obligation, 
before the expiration of the said sixty (60) days following the 
date of said notice of termination, to pay any differences between 
the royalties and operating fees so accruing and the foregoing 
amount and maintain this Agreement and the license granted to MD 
in full force and effect, subject to Affymetrix' rights to 
terminate this Agreement pursuant to any of Sections 7.3 through 
7.5 hereunder.

5.5     In partial consideration of the rights and waivers herein MD shall 
pay to Affymetrix [**] upon MD's execution of this Agreement.  
Such payment shall be subject to refund as follows: a) if a 
Category 1 patent has not issued by [**] shall be refunded, and b) 
if a Category 2 patent has not issued by [**] shall be refunded.  

5.6     During the Initial Period, and as to Array Makers (excluding 
Research Array Makers) transferred to third parties under 
contracts in which MD has committed to transfer such Array Makers 
pursuant to agreements effective before [**] MD will pay to 
Affymetrix an operating license fee for the usage of the Array 
Makers during the period beginning when the Category 1 and/or 2 
Patents, as applicable, are issued: a) [**] per calendar year for 
each calendar year in which a Category 1 Patent is issued, pro-
rated for the number of months in such calendar year in which such 
Category 1 Patent is issued, and provided that this payment shall 
not be payable with respect to Array Makers specifically 
configured to make Nucleic Acid Arrays at a density of less than 
[**], and b) [**] per calendar year for each calendar year in 
which a Category 2 Patent is issued, pro-rated for the number of 
months in such calendar year in which such Category 2 Patent is 
issued.  The foregoing operating license fees are a proxy for 
usage fees for the Array Makers.  The fees recited in this Section 
may be made in equal quarterly installments during the applicable 
calendar year in which such payments are due.     

5.7     MD will reasonably gather data regarding the Array Makers 
(excluding Research Array Makers) sold pursuant to this Agreement 
to determine the approximate use rate and type of use (density of 
arrays, etc.) by users of such Array Makers.  Before [**] the 
Parties will meet and confer regarding an appropriate and 
reasonable metering system (such as, for example, monitoring of 
reagent usage, software usage monitoring, etc.) that may be used 
to apply reasonable royalties and operating fees to the use of 
such Array Makers reflective of the rates recited herein for Array 
Makers and Nucleic Acid Arrays.  During the Metering Period, the 
royalties and operating fees payable on any such Array Makers will 
be based upon such agreed metering mechanism.

5.8     Until such time as Affymetrix provides MD written notification of 
the issuance of a Category 1 Patent, MD may discount the royalties 
and operating fees payable on Nucleic Acid Arrays pursuant to 
Sections 5.1 and 5.6 herein by [**].  Until such time as 
Affymetrix provides MD written notification of the issuance of a 
Category 2 Patent, MD may discount the royalties and operating 
fees payable on Nucleic Acid Arrays pursuant to Sections 5.1 and 
5.6 herein by [**].  It is understood during such time as neither 
a Category 1 Patent or a Category 2 Patent is issued, MD may 
discount the royalties and operating fees payable on Nucleic Acid 
Arrays pursuant to Sections 5.1 and 5.6 herein by [**].

5.9     Molecular Dynamics shall pay to Affymetrix a one-time royalty on 
each Research Market Array Maker and reagents sold therefor equal 
to [**] of the net sales revenue (F.O.B. Sunnyvale) of such 
Research Market Array Makers and reagents sold therefor.

5.10    MD may discount the royalties/operating fees payable pursuant to 
Section 5.1 herein on the sale of Nucleic Acid Arrays by [**] in 
those cases where the Genes represented on the Nucleic Acid Arrays 
are from an organism listed in Exhibit 6.

5.11    If,  under similar conditions and on substantially the same terms 
as this Agreement, other than royalty terms, Affymetrix shall 
hereafter enter into another agreement making available to any 
person, firm or company (other than any national government or 
branches or agencies of any national government, or any 
Affiliate(s) of Affymetrix) a license or immunity from suit for 
any country or countries, otherwise of the same scope as the 
licenses and immunities granted MD under this Agreement, wherein 
the terms taken as a whole are more favorable than those granted 
in this Agreement, then MD shall, at MD's election to be exercised 
within ninety (90) days from the date of Affymetrix' notification, 
be entitled to the benefit of such more favorable terms in such 
country or countries as of and subsequent to the effective date of 
the grant by Affymetrix of such more favorable terms, so long as 
such more favorable terms shall be available to such other 
licensee, provided that in any such event MD shall at the same 
time accept any and all other terms, conditions and limitations 
imposed on such other licensee, whether or not they are directly 
related to such more favorable terms.  Affymetrix shall reasonably 
notify MD of any agreement which provides Affymetrix of the 
benefits of this paragraph.

6       RECORDS, ACCOUNTS AND PAYMENTS  tc  \l 1 "RECORDS, ACCOUNTS AND 
PAYMENTS" 

6.1     The royalties and operating fees payable by MD to Affymetrix as 
provided in Article 5 shall be paid on or before the last day of 
February, May, August and November in each calendar year for MD's 
operations hereunder during the respective immediately preceding 
calendar quarter.  MD will at the same time deliver to Affymetrix 
a certified statement of one of MD's officers, on forms which may 
be provided or prescribed therefor by Affymetrix, accounting for 
royalties and operating fees payable hereunder, or showing that no 
royalty is payable.

6.2     In keeping with established bookkeeping and accounting practices, 
MD shall maintain, for a period of two (2) years following the end 
of the calendar year in which any royalties and operating fees are 
payable, appropriate books and records fully adequate to show the 
full amount of royalty payable under this Agreement, including, 
but not limited to, books and records showing each sale, lease, or 
other transfer of Nucleic Acid Arrays or Systems, the net invoice 
price for said sale, lease, other transfer, and sublicense, the 
name and address of the purchaser, lessee, transferee and/or 
sublicensee, as appropriate.  Affymetrix shall have the right, at 
any time during regular business hours and upon 10 days notice, to 
make such examination as Affymetrix deems necessary to verify said 
records and books of account.  In the event that such examination 
reveals a discrepancy between the royalties and operating fees 
payable hereunder and the royalties and operating fees actually 
paid, all such additional royalties and operating fees, together 
with interest from the date when such additional royalties and 
operating fees would have been due, shall be paid to Affymetrix 
within thirty (30) days of written notice from Affymetrix of such 
discrepancy.  Such notice shall be deemed to be notice of default 
under Section 7.5 hereunder.  Any such audit shall be at 
Affymetrix sole expense and performed by a nationally recognized 
accounting firm under reasonable obligations of confidentiality.  
In the event that  a deficiency of more than [**] is discovered, 
the audit shall be at MD expense.

6.3     All payments provided for in this Agreement refer to lawful money 
of the United States of America.  All payments shall be made by MD 
to Affymetrix at the office of Affymetrix designated in Section 8 
and shall be made in the full amounts as herein specified; 
provided, however, that deduction may be made from such payments 
by MD for amounts lawfully required to be withheld and paid by MD 
in respect of any income tax levied or assessed upon such payments 
by, and in accordance with the laws of, any foreign government but 
only in respect to sales and leases by MD in the foreign country 
imposing such income tax.  Affymetrix shall have the right at any 
time or from time-to-time to contest by appropriate proceedings 
the validity or amount of any such income tax withheld.  If so 
requested by Affymetrix, MD will make such payments under protest, 
and, on behalf and at the expense of Affymetrix, take such other 
action and render all reasonable assistance that may be required 
by Affymetrix in the prosecution of any such proceedings.  MD will 
obtain and forward to Affymetrix tax credit receipts or vouchers 
for all income taxes thus withheld and paid by MD.  As used 
herein, "income tax" shall mean a tax on income imposed by a 
country other than the United States of America or by any 
possession or territory of the United States of America, for which 
a foreign tax credit is allowed by the Government of the United 
States of America.  All late payments shall bear interest at the 
rate of 1.5% per month, unless the maximum amount allowed by law 
is lower, in which case all late payments shall bear interest at 
the maximum permitted rate.

6.4     If one or more of the payments required to be made herein is not 
made by its due date, and if such payment or payments, plus 
interest, is not made prior to forty five (45) days after notice 
from Affymetrix of such delinquency, then Affymetrix may, at its 
sole option, terminate this Agreement  on the fifteenth day after 
written notice is given to MD that it intends to terminate this 
Agreement.   

6.5     All payments herein shall be made in United States of America 
dollars in the form of a check drawn on a United States bank. 

7       DURATION OF AGREEMENT  tc  \l 1 "DURATION OF AGREEMENT" 

7.1     Unless earlier terminated as provided below, this Agreement shall 
remain in full force and effect until January 1, 2008.

7.2     At any time after one (1) year following the Effective Date of 
this Agreement, MD may terminate this Agreement upon sixty (60) 
days' prior written notice to Affymetrix.

7.3     In the event that MD intends to file any petition, answer, or 
other proceeding in bankruptcy, MD will use reasonable efforts to 
give Affymetrix reasonable advance written notice prior to filing 
such petition and provide Affymetrix reasonable adequate 
opportunity to review and oversee any reorganization or  disposal 
of MD's relevant assets (to the extent applicable to the 
intellectual property rights herein granted) to ensure strict 
compliance with this Agreement.  Failure to comply with this 
Section shall be considered a material breach which may not be 
remedied.  

7.4     In the event that MD files, or intends to file any petition, 
answer, or other proceeding in bankruptcy, Affymetrix will have 
the right, but not the obligation, to terminate this Agreement by 
providing written notice.

7.5     If either party should fail to perform any obligations under this 
Agreement, the other party may give written notice to the 
defaulting party calling attention to the default. In the event of 
a material breach or default, unless said breach or default is 
corrected within thirty (30) days after such notice, said other 
party shall thereafter have the right to terminate this Agreement 
upon thirty (30) days' prior written notice to said defaulting 
party.  Said right to terminate for default shall be in addition 
to, and without prejudice to the exercise of, any other remedies 
available in law or equity.

7.6     No termination of this Agreement shall in any way affect MD's 
obligations pursuant to Articles 5 and 6 to pay royalties and 
operating fees, deliver statements, and maintain books and records 
under this Agreement accrued prior to such termination, or MD's or 
Affymetrix's obligations pursuant to Section 3.2.  Furthermore, no 
termination of this Agreement shall in any way affect Affymetrix's 
rights under Sections 4 above.

8       MISCELLANEOUS  tc  \l 1 "MISCELLANEOUS" 

8.1     MD and Affymetrix will appropriately mark all licensed products 
hereunder with applicable intellectual property rights notices as 
may be reasonably be provided from time to time by the other 
Party.  In addition, all product manuals and instruments to be 
sold as or in conjunction with Nucleic Acid Arrays, Systems, or 
Array Makers shall include the following notice, such notice to be 
reasonably modified upon notice from Affymetrix provided that any 
such modification is consistent with the terms and conditions of 
this Agreement: 

LIMITED LICENSE: NUCLEIC ACID ARRAYS, ARRAY MAKERS, SYSTEMS 
(INSTRUMENTS, SOFTWARE, AND REAGENTS) ARE LICENSED FOR 
RESEARCH USE ONLY.  NO IMPLIED RIGHT TO MAKE, USE, HAVE 
MADE, OFFER TO SELL, LEASE, DISTRIBUTE, SELL, OR IMPORT 
NUCLEIC ACID PROBE ARRAYS OR  ANY OTHER PRODUCT IN WHICH 
AFFYMETRIX OR MOLECULAR DYNAMICS HAS  PATENT RIGHTS IS 
CONVEYED BY THE SALE OF  PROBE ARRAYS, INSTRUMENTS, 
SOFTWARE, OR REAGENTS HEREUNDER. THIS LIMITED LICENSE 
PERMITS ONLY THE USE OF THE PARTICULAR PRODUCT(S) THAT THE 
USER HAS PURCHASED FROM AFFYMETRIX OR LICENSED AND SOLD BY 
MOLECULAR DYNAMICS,  OR PERMITTED LICENSEES, AND MAY NOT BE 
USED IN DATABASE GENERATION FOR EXTERNAL LICENSE OR SALE, OR 
FOR SERVICE BASED PHARMACEUTICAL RESEARCH. 

8.2     Affymetrix warrants that the Technical Information does not 
infringe the copyrights or trade secret rights of a third party, 
and will indemnify MD against any claims based on the infringement 
of third party copyrights or trade secret rights.  THIS WARRANTY 
STATES THE ENTIRE LIABILITY FOR INFRINGEMENT OF THIRD PARTY 
INTELLECTUAL RIGHTS ARISING FROM THE SALE OF PRODUCTS UNDER THIS 
AGREEMENT.  

8.3     Nothing in this Agreement shall be construed as conferring any 
right to use in advertising,  publicity, or other promotional 
activities any name, trade name, trademark, or other designation 
of either party hereto without the express written approval of the 
other party.

8.4     Each of Affymetrix and MD represents and warrants that it neither 
owns or controls any patent or patent application which would be 
necessary for the other party to exercise the rights granted 
herein and which is not licensed hereunder.  MD and Affymetrix 
warrant that they each have the full right to enter into this 
Agreement. Nothing in this Agreement shall be construed as a 
warranty or representation by Affymetrix  or MD as to the validity 
or scope of any of the Patent Rights, a warranty or representation 
by either party that any manufacture, sale, use, or other 
disposition of the products licensed hereunder will be free from 
infringement of patents, utility models, and/or design patents 
other than those Patent Rights for which licenses are extended 
hereunder.  Nothing in this Agreement shall be considered as 
conferring any warranty or representation as to the usefulness, 
marketability, or merchantability of any products sold within the 
scope of the licenses hereunder.  Affymetrix and MD agree to hold 
the other harmless from any personal injury or products liability 
claims made as a result of the sale of products licensed 
hereunder. 

8.5     The Parties will retain the terms of this Agreement in strict 
confidence, except as may be required by regulatory agencies or 
courts, and will then use all reasonable precautions to maintain 
the terms of this Agreement confidential.

8.6     This Agreement is not assignable by MD by operation of law or 
otherwise without the prior written consent of Affymetrix 
including in the event of acquisition of the assets or stock of MD 
without the consent of Affymetrix, which will not be unreasonably 
withheld, except in the case of companies directly competitive 
with Affymetrix.  Affymetrix may assign this Agreement, without 
the prior written consent of MD, to any entity acquiring all or 
substantially all of Affymetrix' Nucleic Acid Array licensing 
business.  No assignment of this Agreement shall be valid until 
all obligations under this Agreement shall have been assumed in 
writing by the assignee.

8.7     This Agreement is executed by the parties with the understanding 
that it embodies the entire agreement between the parties 
pertaining to the subject matter of this Agreement and there are 
no representations, warranties or other commitments, written or 
oral, pertaining to the subject matter of this Agreement which are 
not embodied in this Agreement.

8.8     MD and Affymetrix represents that they are familiar with the 
Export Administration Regulations comprising the compilation of 
official regulations and policies governing the export licensing 
of commodities and technical data promulgated by the United States 
Department of Commerce, Bureau of International Commerce, Office 
of Export Administration.  Notwithstanding any other provisions of 
this Agreement, and each assures the other that with respect to 
all information and licenses furnished by or  under this 
Agreement, that it will comply with such official regulations.

8.9     It is understood and agreed between the parties that the Technical 
Information made available to each Party shall all be provided "as 
is" without any warranties, express or implied.  THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
ARE EXPRESSLY EXCLUDED FROM THIS WARRANTY AND FROM THE TERMS OF 
THIS CONTRACT BY AGREEMENT OF THE PARTIES.  In no event will 
Affymetrix or MD be liable for lost or prospective profits or 
indirect or consequential damages even if Affymetrix or MD has 
been advised of the possibility of such damages.

8.10    The addresses of the parties hereto for all purposes of this 
Agreement shall be as follows:

Affymetrix:          
Affymetrix, Inc.
3380 Central Expressway
Santa Clara, CA 95051
Attn: President



MD:     
Molecular Dynamics, Inc.
928 East Arques Avenue
Sunnyvale, CA 94086
Attn: President

All correspondence relating to this Agreement shall be deemed to 
have been duly communicated to the addressee upon the confirmed 
facsimile transmission or prepaid express mailing to the party 
entitled thereto at its above address or at such address as it may 
from time-to-time designate in writing to the other party.

8.11    In the event that any provision of this Agreement is held invalid 
or unenforceable for any reason, such unenforeceability shall not 
affect the enforceability of the remaining provisions of this 
Agreement, and all provisions of this Agreement shall be construed 
so as to preserve the enforceability hereof.

8.12    The waiver by either Party of a breach or a default of any 
provision of this Agreement by the other Party shall not be 
construed as a waiver of any succeeding breach of the same or any 
other provision, nor shall any delay or omission on the part of 
either Party to exercise or avail itself of any right, power or 
privilege that it has or may have hereunder operate as a waiver of 
any right, power or privilege by such Party.

8.13    This Agreement is made and shall be construed in accordance with 
the local laws of the State of California, U.S.A. without regard 
to the doctrine of conflict of laws.

8.14    This Agreement may be executed in any number of counterparts, each 
of which shall be deemed an original but all of which together 
shall constitute one and the same instrument

IN WITNESS WHEREOF, the parties have respectively caused this Agreement 
to be executed on the dates hereinafter indicated.

Affymetrix, Inc.


By:                           

Title:                        

Date:                         


Molecular Dynamics,  Inc.


By:                           

Title:                        

Date:                         

Exhibit 1 tc  \l 1 "1" 
Affymetrix Patent Listing (by Affymetrix file no.)


[**] 
[**] 
[**] 
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Exhibit 2 tc  \l 1 "Exhibit 2" 
MD Patent Listing (by patent no. or MD file no.)


[**]
[**]
[**]


Exhibit 3 tc  \l 1 "3" 
Licensed Software Packages


GeneChipr System Software (current version)
GeneChip Expression Analysis Software (Cat No. 900136)

Exhibit 4 tc  \l 1 "4" 
Software License Provision

END-USER LICENSE AGREEMENT

IMPORTANT-READ CAREFULLY: This End-User License Agreement ("Agreement") 
is a legal agreement between you and Affymetrix, Inc. ("Licensor"), the 
licensor of the software products ("Software Products") accompanying the 
diagnostic or analytical system ("System") you have acquired from 
Affymetrix or a distributor of the System ("Distributor").  The Software 
Products include computer programs, associated storage media, associated 
documentation, and any other information regarding the software products 
listed below.  If the Software Products are not accompanied with a 
System, you may not use, copy or read the Software Products.  By 
installing, copying, reading, or otherwise using the Software Products, 
you agree to be bound by the terms of this Agreement.  If you do not 
agree to the terms of this Agreement, Licensor is unwilling to license 
the Software Products to you.  In such event, you may not use, copy or 
Distributor for instructions on return of the Software Products.  This 
Agreement represents the entire agreement concerning the Software 
Products between you and Licensor, and it supersedes any prior proposal, 
representation, or understanding between the parties.


The Software Products are protected by copyright laws and international 
copyright treaties, as well as other intellectual property laws and 
treaties.  The Software Products are licensed, not sold, to you by 
Licensor for use only under the terms of this Agreement, and Licensor 
reserves any rights not expressly granted to you.

1. License Grant.   This Agreement grants to you, and you accept, a 
nonexclusive license to use the Software Products.  The computer 
programs of the Software Products ("Computer Programs") may only be used 
on the System.  Further, the Computer Programs may only be used in their 
machine-readable, object code form.  You agree that you will not assign, 
sublicense, transfer, pledge, lease, rent, or share your rights under 
this Agreement.  You agree that you may not modify or prepare derivative 
works of the Software Products.  You agree that you may not reverse 
engineer, decompile, disassemble, or otherwise translate the Computer 
Programs.  The Software Products are for RESEARCH USE ONLY.  You agree 
not to use the Software Products in any setting requiring FDA or other 
regulatory approval.

The Computer Programs may be loaded on the System in both 
temporary and

permanent storage, and the associated storage media may be utilized for 
backup purposes.  In addition, you may make one copy of the Computer 
Programs on a backup storage media for the purpose of backup.  Except as 
authorized under this paragraph, no copies of the Software Products or 
any portions thereof may be made by you or any person under your 
authority or control.

2. Licensor's Rights.   You acknowledge and agree that the Software 
Products are proprietary products of Licensor protected under copyright 
and other intellectual property laws.  You further acknowledge and agree 
that all right, title, and interest in and to the Software Products, 
including associated intellectual property rights, are and shall remain 
with Licensor.  This Agreement does not convey to you an interest in or 
to the Software Products, but only a limited right of use revocable in 
accordance with the terms of this Agreement.  You agree to keep 
confidential and use your reasonable efforts to prevent and protect the 
Software Products from unauthorized disclosure or use.  LIMITED LICENSE: 
PROBE ARRAYS, INSTRUMENTS, SOFTWARE, AND REAGENTS ARE LICENSED FOR 
RESEARCH USE ONLY.  NO IMPLIED RIGHT TO MAKE, HAVE MADE, USE, LEASE, 
DISTRIBUTE, OFFER TO SELL, SELL, OR IMPORT  OLIGONUCLEOTIDE PROBE ARRAYS 
OR  ANY OTHER PRODUCT IN WHICH AFFYMETRIX HAS  PATENT RIGHTS IS CONVEYED 
BY THE SOFTWARE.  THIS LIMITED LICENSE PERMITS ONLY THE USE OF THE 
PARTICULAR PRODUCT(S) THAT THE USER HAS PURCHASED FROM AFFYMETRIX OR ITS 
LICENSEES OF PARTICULAR PATENT RIGHTS. 

3. Software Products.   The Affymetrix software products covered by this 
Agreement include, but are not limited to, the following:

[to be added]

4. Term.   This Agreement shall continue until terminated.  You may 
terminate this Agreement at any time by destroying all copies of the 
Software Products, including the associated storage media and 
documentation, and erasing all copies of the Software Products in both 
temporary and permanent storage on the System.  Licensor may terminate 
this Agreement upon the breach by you of any term hereof.

5. Limited Warranty.   Licensor or its distributor warrants, for your 
benefit alone, for a period of ninety (90) days from the date of 
commencement of this Agreement ("Warranty Period") that the associated 
storage media on which the Computer Programs reside will be free from 
defects in material and workmanship.  Licensor further warrants, for 
your benefit alone, that during the Warranty Period the Computer 
Programs shall operate substantially in accordance with the associated 
documentation.  If during the Warranty Period, a defect in the

Computer Programs appears, you may return the Software Products to 
Licensor for either replacement or, if so elected by Licensor, refund of 
license fees paid by you to Distributor for use of the Software 
Products.  TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, AFFYMETRIX 
AND ITS LICENSORS EXPRESSLY DISCLAIM ALL OTHER WARRANTIES, EITHER 
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH REGARD TO THE 
SOFTWARE PRODUCTS.  SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR 
LIMITATION OF IMPLIED WARRANTIES SO THE ABOVE LIMITATION MAY NOT APPLY 
TO YOU.

6. Limitation of Liability.   To the maximum extent permitted by 
applicable law, Licensor's cumulative liability to you or any other 
party for any loss or damages resulting from any claims, demands, or 
actions arising out of or relating to this Agreement shall not exceed 
the license fees paid to Distributor for the use of the Software 
Products.  In no event shall Licensor be liable for any incidental, 
consequential, special, or exemplary damages, or indirect damages for 
personal injury or lost profits, even if Licensor has been advised of 
the possibility of such damages.  SOME JURISDICTIONS DO NOT ALLOW THE 
LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL 
DAMAGES SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

7. Governing Law.   This Agreement shall be governed by and interpreted 
under the laws of California, without regard to conflict of law 
provisions.

8. Severability.   Should any term of this Agreement be declared void or 
unenforceable by any court of competent jurisdiction, such declaration 
shall have no effect on the remaining terms hereof.

9. U.S. Government Restricted Rights.   The Software Products and 
documentation are provided with RESTRICTED RIGHTS as follows:

        a. Department of Defense LicenseesThe Government's right to 
use, modify, reproduce, release, perform, display, or disclose the 
Software Products are restricted by paragraph (b)(3) of the Rights in 
Noncommercial Computer Software and Noncommercial Computer Software 
Documentation clause contained in the relevant contract between the 
Government and Affymetrix, Inc, 3380 Central Expressway, Santa Clara, 
California 95051.  Any reproduction of the Software Products or portions 
thereof marked with this legend must also reproduce the markings.  Any 
person, other than the Government, who has been provided access to the 
Software Products must promptly notify Affymetrix.

        b. Civilian Government Agency LicenseesUse, reproduction, or 
disclosure is subject to restrictions set forth in the relevant contract 
between the Government and Affymetrix, Inc, 3380 Central Expressway, 
Santa Clara, California 95051.


Exhibit 5 tc  \l 1 "5" 
Excused Fabrication Systems

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Exhibit 6 tc  \l 1 "6" 
Discounted Organisms

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Confidential
Affymetrix/MD
24
March 24, 1998 (12:53pm)


<TABLE> <S> <C>

<ARTICLE>  5
<LEGEND>   This schedule contains summary financial information extracted
           from the Balance Sheet and Statement of Operations included in
           the Company's Form 10-K for the years ended December 31, 1997,
           1996 and 1995 and is qualified in its entirety by reference
           to such Financial  Statements. The information for the years 
           ended December 31, 1996 and 1995 has been restated to reflect 
           the effect of SFAS No. 128, "Earnings per Share."
</LEGEND> 
<MULTIPLIER> 1,000 
       
<S>                                       <C>         <C>         <C>
<FISCAL-YEAR-END>                         Dec-31-1997 Dec-31-1996 Dec-31-1995
<PERIOD-START>                            Jan-01-1997 Jan-01-1996 Jan-01-1995
<PERIOD-END>                              Dec-31-1997 Dec-31-1996 Dec-31-1995
<PERIOD-TYPE>                             12-MOS      12-MOS      12-MOS
<CASH>                                      11,571       8,024       2,727
<SECURITIES>                                 8,558      12,617      14,895
<RECEIVABLES>                               14,685      12,815      12,454
<ALLOWANCES>                                   282         254         281
<INVENTORY>                                 10,675       6,869       7,470
<CURRENT-ASSETS>                            51,488      40,148      37,668
<PP&E>                                      10,878       8,182       6,923
<DEPRECIATION>                               6,156       5,185       4,135
<TOTAL-ASSETS>                              59,055      46,043      42,745
<CURRENT-LIABILITIES>                       17,137      12,529       9,100
<BONDS>                                          0           0           0
                            0           0           0
                                      0           0           0
<COMMON>                                       104         102         102
<OTHER-SE>                                  41,814      33,412      33,543
<TOTAL-LIABILITY-AND-EQUITY>                59,055      46,043      42,745
<SALES>                                     55,715      49,378      38,938
<TOTAL-REVENUES>                            55,715      49,378      38,938
<CGS>                                       25,456      21,471      17,532
<TOTAL-COSTS>                               25,456      21,471      17,532
<OTHER-EXPENSES>                            25,889      24,983      25,330
<LOSS-PROVISION>                                30          30          30
<INTEREST-EXPENSE>                               0           0           0
<INCOME-PRETAX>                              5,523       3,787      (2,967)
<INCOME-TAX>                                   663         379          20
<INCOME-CONTINUING>                          4,860       3,408      (2,987)
<DISCONTINUED>                                   0           0           0
<EXTRAORDINARY>                                  0           0           0
<CHANGES>                                        0           0           0
<NET-INCOME>                                 4,860       3,408      (2,987)
<EPS-PRIMARY>                                 0.48        0.34       (0.30)
<EPS-DILUTED>                                 0.43        0.32       (0.30)
        

</TABLE>


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