PACKARD BIOSCIENCE                                                 EXHIBIT 99.1


Contact: Packard BioScience
Mike Zebarth
Tel:  (203) 639-2340
Fax:  (203) 235-1347
E-mail: mzebarth@packardbioscience.com


Noonan/Russo Communications, Inc.
Tel:  (212) 696-4455
John Capodanno, ext. 246 (investors); j.capodanno@noonanrusso.com
Hala Bashir, ext. 356 (media); h.bashir@noonanrusso.com



                   PACKARD BIOSCIENCE COMPLETES ACQUISITION OF
              GSLI LIFE SCIENCES -- Purchase Positions Packard as a
             Leading Provider of Biochip and Microarray Products --



Meriden,  Connecticut,  October 2, 2000 -- Packard  BioScience  Company (Nasdaq:
PBSC)  announced  today that the  company has  acquired  GSLI Life  Sciences,  a
division of GSI Lumonics, Inc. (Nasdaq: GSLI; Toronto Exchange:  LSI), a leading
provider  of imaging  equipment  for  biochip and  microarray  applications.  In
addition  to  the  imaging   product   line,   Packard  has  also  acquired  the
bioinformatics  software  products of GSLI Life Sciences.  Packard purchased the
company for $40M in cash and  approximately 4.6 million shares of Packard common
stock (with an adjustment based on net assets acquired). The acquisition will be
accounted for as a purchase and is anticipated to be accretive to Packard's cash
EPS in 2002 and will have a nominal effect prior to that time.

The GSLI Life Sciences group will become a part of Packard BioChip Technologies,
LLC, a new entity formed to highlight Packard's various technologies in the area
of biochips.  Packard seeks to be a leading  provider of biochips and microarray
analysis  tools,  the key  enabling  technologies  for  post-genomics  and  drug
discovery research.

Biochips  are arrays of  miniature  testing  sites  that  allow vast  numbers of
simultaneous  experiments  to be  conducted  in a very  small area -- leading to
research  breakthroughs  and  ultimately  bringing  life-enhancing  therapies to
market much faster. GSLI Life Sciences' laser detection and data analysis, which
are necessary to extract results from such microarray experiments, combined with
Packard's  novel  biochip  formats  and  patented  production  technology,  will
establish an integrated biochip and microarray production and analysis platform.
GSLI Life Sciences'  ScanArray(R)  product line is the established market leader
in the fast growing area of laser scanning for biochip and microarray  analysis.
Due  to  this  market   success,   GSLI  Life  Sciences  is  expecting  to  grow
approximately  50% yearly for the next several years on the basis of $17 million
in  revenues  for the twelve  months  ended June  30,2000.  GSLI Life  Sciences'
products are used in applications including single nucleotide polymorphism (SNP)
detection, gene expression analysis, protein studies and drug discovery.

"We are very excited about this announcement,"  said Emery Olcott,  Chairman and
CEO of Packard  BioScience.  "It underscores our commitment to developing broad,
integrated  solutions  for the drug  discovery  process.  With this  acquisition
Packard will be among the top three global  providers of biochip and  microarray
tools for genomic and proteomic analysis. As we move beyond the post-genome era,
DNA  microarray  and  biochip   technology  must  become  widely   available  as
cost-effective,  bench-top  research  tools.  Packard is well positioned to meet
this  need by  developing  low-cost,  custom  designed  products  which  combine
Packard's  proprietary  Biochip  Arrayer(TM)  production  technology with GSLI's
ScanArray(R) readers and bioinformatics software.

Biochips containing  microarrays of genetic information promise to be one of the
most important  research tools in the post-genome  era. They are one of the very
few platforms that support the highly  parallel  analysis  needed to exploit the
explosive  growth in genetic  information  resulting  from the sequencing of the
human genome.  Initial applications will be in drug discovery,  pharmacology and
clinical  research.  The emerging field of  pharmacogenomics,  which explores an
individual's  genetically determined response to drugs, is particularly expected
to benefit from biochip  analysis,  eventually  leading to mass  diagnostic  and
personalized  medicine  applications.  Other biochip  applications  will include
forensics, toxicology and epidemiological research.

"GSI  Lumonics'  Life Science  potential  will be best realized with a strategic
partner such as Packard  BioScience which is focused purely on the life sciences
market," said Charles Winston,  President & CEO, GSI Lumonics. "By combining our
technology  and  employees  with  Packard's   complementary  product  lines  and
worldwide  distribution  network,  Packard  will  continue  to rapidly  grow the
business."

GSI Lumonics Inc. supplies laser-based automated advanced manufacturing systems,
components and services to the semiconductor, electronics and automotive markets
and provides  precision  optics for  telecommunications.  GSI  Lumonics'  common
shares are listed on Nasdaq (GSLI) and the Toronto  Stock  Exchange  (LSI).  The
company's web site address is www.gsilumonics.com.

Packard  BioScience  Company is a leading  global  developer,  manufacturer  and
marketer of instruments and related consumables and services for use in the life
sciences  research and nuclear  industries.  The Company is primarily focused on
the rapidly growing areas of drug discovery,  genomics and biochip  analysis and
is  continuing  to  develop  integrated  platforms  based  on a  wide  range  of
technologies and  instrumentation.  Packard's experience in working in more than
60 countries with market leading  customers has allowed the Company to establish
a worldwide leadership position in many of its primary product categories,  with
well-recognized  brand  names  and  a  reputation  for  high  quality,  reliable
instruments.  Recently,  Packard  has  focused on the  development  of  enabling
biochip  technologies,  and  has  started  to  exploit  its  pioneering  biochip
production  patents  through  both direct  sales of biochip  products as well as
through licensing agreements with other biochip  manufacturers such as Motorola,
Inc.

Certain  statements  contained  herein are "forward  looking"  statements  which
involve a high degree of risk and uncertainty,  including,  without  limitation,
the  prospective   statements   regarding  the  expected  expansion  of  biochip
applications  and  our  ability  to  capitalize  on such  expansion,  and may be
identified by the use of  forward-looking  words or phrases such as  "expected,"
"expecting" or "anticipated."  Many factors could cause actual results to differ
materially from these statements including,  without limitation,  loss of market
share from competition,  our ability to successfully  introduce new products and
platforms,  market  acceptance  of new  products and  platforms,  our ability to
protect our intellectual  property,  not infringing on the intellectual property
rights of others,  changes in the markets we serve and  economic  issues such as
interest rate and foreign  exchange  fluctuations.  These and other risk factors
are  discussed  in  detail  in our  filings  with the  Securities  and  Exchange
Commission.