Exhibit 3(13)



                              EMPLOYMENT AGREEMENT


This Employment Agreement (the "Agreement") is made and entered into as of this
3rd day of August, 1998 by and between XENOTECH, INC., a Canadian corporation
(the "Company"), and Christopher Michael Yewdall (the "Employee").

WITNESSETH:

WHEREAS, the Company desires to employ the Employee as a Vice
President of Sales and Marketing of the Company; and

WHEREAS, the Employee desires to serve the Company as a Vice
President of Sales and Marketing; and

WHEREAS, the Company and the Employee desire to enter into an employment
agreement that shall set forth their respective duties, obligations and
responsibilities;

NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein, the receipt and sufficiency of which are hereby acknowledged,
the Company and the Employee agree as set forth below.

1.       EMPLOYMENT AND DUTIES

         a.       The Company agrees to and does hereby employ the
                  Employee, and the Employee does hereby accept
                  employment with the Company, as a Vice President
                  of Sales and Marketing for such territories as the
                  Company may nominate from time to time, to operate
                  and manage the sales and marketing of the Company's
                  products and technologies in such territories with
                  all the authority customarily afforded to a Vice
                  President subject to the normal supervision and
                  authority of the Board of Directors of the Company,
                  and to perform such other reasonable duties which
                  are consistent with such position as are from time
                  to time delegated to the Employee by the Board of
                  Directors of the Company.  The Employee will perform
                  all services and acts necessary in such capacities
                  to properly manage sales and marketing of
                  Company's products and services, and the Employee
                  shall endeavour in good faith to perform his duties
                  in an efficient, faithful and businesslike manner.

         b.       The Employee acknowledges that the Company has an
                  international presence and that the Employee will be
                  required to travel internationally as part of his
                  duties.  Such travel may include, but not be limited
                  to, Europe, Australia, North America (Canada and the
                  United States) and Asia.  The Company shall provide
                  assistance with any applicable permits and visas
                  which may be necessary for the Employee to undertake
                  these duties.

2.       TERM OF AGREEMENT

         The provisions of this Agreement shall remain in full force and effect
         and the employment of the Employee with the Company shall continue
         until terminated by a






         written Notice of Termination (as described in Section 5(c)) provided
         by either the Company or the Employee. In addition, notwithstanding the
         previous sentence, this Agreement may be terminated at any time by
         mutual agreement of the parties hereto or by the Company at any time
         following the date on which the Employee attains age sixty-fiv (65)
         (hereinafter termination of this Agreement by the Company after the
         Employee has attained age sixty-five (65) shall be referred to as
         "Retirement").

3.       COMPENSATION

         a.       BASE SALARY

                  During the term of this Agreement, the Employee shall be paid
                  a base salary, payable in accordance with the Company's normal
                  payroll practice. The Employee's initial base salary shall be
                  One Hundred Twenty Thousand US Dollars (US$120,000) per annum
                  payable in equal bi-weekly installments.

         b.       BONUS

                  Employee shall be eligible for a bonus plan (the "Bonus Plan")
                  up to a maximum annual bonus of Eighty Thousand US Dollars
                  (US$80,000). The Bonus Plan shall be based upon a combination
                  of reasonable financial and operational objectives established
                  by the Company. The Bonus Plan will be payable quarterly based
                  upon successful achievement of the financial objectives and
                  fiscally based upon successful achievement of the operational
                  objectives. The Company shall pay any annual Bonus Plan
                  payments due to the Employee no later than 90 days following
                  the Company's fiscal year end.

         c.       BUSINESS EXPENSES

                  The Company shall reimburse the Employee for all reasonable
                  business expenses incurred by the Employee in pursuit of
                  carrying out the duties defined in 1. The Employee shall incur
                  such expenditure in accordance with the Company's then current
                  practices for business expenditure. The Company shall not
                  unreasonably withhold reimbursement of such expenses to the
                  Employee and shall reimburse the Employee at least once during
                  each calendar month.

         d.       REVIEW

                  The Employee shall be entitled to an annual Compensation
                  review on each anniversary of the Employee joining the
                  Company.

4.       OTHER EMPLOYEE FRINGE BENEFITS

         a.       IN GENERAL

                  The Company shall further provide the Employee with medical,
                  dental and life insurance coverage, sick leave and statutory
                  paid holidays, and such other fringe benefits of employment as
                  the Company may provide from time to time to actively employed
                  executives of the Company in such amounts or at such rates or
                  levels as the Company shall reasonably determine.






         b.       SUPPLEMENTAL BENEFITS

                  The Company shall also provide the Employee with the following
                  supplemental benefits:

                  (i)     VACATION

                          The Employee will be entitled to (20) days paid leave
                          per year in addition to statutory holidays at such
                          time as agreed between the Employee and the Company.

                  (ii)    STOCK OPTION PLAN

                          The Employee will be entitled to one million
                          (1,000,000) stock options on the conditions, and at
                          the times set forth below provided however, that
                          Employee continues to be employed by the Company and
                          otherwise fulfills his obligationS under this
                          Agreement:

                          1)  Employee shall have the option to purchase 250,000
                              shares of the Company's common stock at a price of
                              Canadian $0.30 per share upon the Employee joining
                              the Company.

                          2)  Employee shall have the option to purchase 250,000
                              shares of the Company's common stock at a price of
                              Canadian $0.30 per share upon the one year
                              anniversary of Employee's commencement of work
                              with Company.

                          3)  Employee shall have the option to purchase 250,000
                              shares at the Company's common stock at a price of
                              Canadian $0.30 per share upon the two year
                              anniversary of Employee's commencement of work
                              with the Company.

                          4)  Employee shall have the option to purchase 250,000
                              shares of the Company's common stock at a price of
                              Canadian $0.30 per share upon the three year
                              anniversary of Employee's commencement of work
                              with the Company.

                  (iii)    RELOCATION ALLOWANCE

                           The Company shall pay Employee the sum of Five
                           Thousand Dollars ($5,000) to defer Employee's
                           expenses of relocating in order to commence
                           employment with the Company.

                  (iv)     AIRFARE

                           The Company shall provide Employee with two (2)
                           economy class, round-trip airline tickets per year to
                           the United Kingdom from wherever the Employee is
                           stationed at the time that he takes leave.

                  (v)      RETIREMENT SAVINGS






                           The Employee shall, from the first anniversary of
                           Employee's commencement to work for the Company, be
                           entitled to participate in any employee pension
                           scheme that the Company may institute. The amount of
                           reasonable annual contribution by the Company to the
                           scheme for the benefit of the Employee shall be
                           determined at the annual Compensation Review.

5.       TERMINATION OF EMPLOYMENT

         a.       TERMINATION OF EMPLOYMENT BY THE COMPANY

                  Employee's employment hereunder may be terminated by the
                  Company without any breach of this Agreement only under the
                  following circumstances:

                  (i)      DEATH, DISABILITY OR RETIREMENT

                           The Employee's employment hereunder shall terminate
                           upon his death and may be terminated by the Company
                           in the event of his Disability or Retirement. For
                           purposes of this Agreement, the term "Disability"
                           shall mean the inability of the Employee due to
                           illness (mental or physical), accident, or otherwise,
                           to perform his duties for any period of ninety (90)
                           consecutive days, as determined by an independent
                           physician selected by the Company and reasonably
                           acceptable to the Employe (or his legal
                           representative), provided that the Employee does not
                           return to work on substantially a full-time basis
                           within thirty (30) days after Notice of Termination
                           is given by the Company pursuant to the provisions of
                           Sections 5(c) and 5(d)(ii). In the event of
                           termination for Death, Employee's estate shall be the
                           beneficiary of any accrued unexercised Stock and/or
                           unpaid Compensation benefits at the time of Death.

                  (ii)     CAUSE

                           The Company may terminate the Employee's employment
                           hereunder for Cause. For the purposes of this
                           Agreement, the Company shall have "Cause" to
                           terminate the Employee's employment hereunder only
                           upon:

                           (a)  his conviction of a felony involving moral
                                turpitude, provided that such conviction would
                                at the time have a material adverse effect on
                                the Company in the reasonable opinion of the
                                Board of Directors of the Company;

                           (b)  gross and willful misconduct by the Employee
                                which is deemed, by the Company's Board of
                                Directors, to be injurious to the Company;

                           (c)  a finding of gross dishonesty of the Employee;

                           (d)  willful malfeasance or gross negligence, or
                                failure to act involving material non-feasance,
                                provided that, in the case of such gross
                                negligence or material non-feasance, it would at
                                the






                                time have a material adverse effect on the
                                Company in the reasonable opinion of the Board
                                of Directors of the Company;

                           (e)  insubordination or refusal to perform reasonable
                                assigned duties consistent with those contained
                                in Section 1;

                           (f)  the Employee's material breach of his
                                obligations contained in Section 7; or

                           (g)  the Employee's failure to meet the agreed upon
                                annual sales and management objective for any
                                fiscal year for the Company.

                  (iii)    FAILURE TO OBTAIN WORK AUTHORISED VISA STATUS

                           The Company may terminate the Employee's employment
                           immediately in the event the Employee is not granted
                           work authorised visa status with the Company by the
                           government of any territory in which the Company
                           wishes to carry on a significant part of the
                           Company's sales and marketing efforts and which
                           efforts, in the reasonable opinion of the Board,
                           require that the Employee work in that territory.

         b.       TERMINATION OF EMPLOYMENT BY EMPLOYEE

                  The Employee may terminate his employment at any time.
                  However, he shall be deemed to have terminated his employment
                  for "Good Reason" only if he terminated his employment by
                  giving Notice of Termination pursuant to Sections 5(c) and
                  5(d)(iii) within ninety (90) days after the occurrence of any
                  of the following events (provided the Company does not cure
                  such event within thirty (30) days following its receipt of
                  the Employee's Notice of Termination):

                  (i)   The Employee's compensation is reduced for any reason
                        other than in connection with the termination of his
                        employment.

                  (ii)  For any reason other than in connection with the
                        termination of the Employee's employment, the Company
                        materially reduces fringe benefits provided to the
                        Employee under Section 4, unless the Company agrees, as
                        evidenced by the Employee's written consent, to fully
                        compensate the Employee for any such material reduction.

                  (iii) The Company's failure to obtain an agreement from any
                        successor or assign of the Company to assume and to
                        agree to perform this Agreement.

                  (iv)  The Company otherwise materially breaches its
                        obligations to make payments to the Employee under this
                        Agreement.

                  Pursuant to termination under 5.b.(iii), Company acknowledges
                  that all accrued Compensation due to Employee shall become
                  immediately payable and all stock options including those
                  defined in 4.(ii) shall be deemed vested and exercisable.






         c.       NOTICE OF TERMINATION

                  Any termination of the Employee's employment by the Company
                  hereunder, or by the Employee other than termination upon the
                  Employee's death, shall be communicated by written Notice of
                  Termination to the other party. For purposes of this
                  Agreement, a "Notice of Termination" means a notice that shall
                  indicate the specific termination provision in this Agreement
                  relied upon, and shall set forth in reasonable detail the
                  facts and circumstances claimed to provide a basis for
                  termination of th Employee's employment under the provision so
                  indicated.

         d.       DATE OF TERMINATION

                  For purposes of this Agreement, an applicable "Date of
                  Termination" means:

                  (i)   If the Employee's employment is terminated by his death,
                        the date of his death.

                  (ii)  If the Employee's employment is terminated by the
                        Company as a result of Disability or Retirement pursuant
                        to Section 5(a)(i) or for Cause pursuant to Section
                        5(a)(ii), the date that is ninety (90) days after Notice
                        of Termination is given (provided that in the case of
                        termination for Disability, the Employee shall not have
                        returned to the performance of his duties on a full-time
                        basis during such ninety (90) day period).

                  (iii) If the Employee terminates his employment for Good
                        Reason pursuant to Section 5(b), the date that is ninety
                        (90) days after Notice of Termination is given (provided
                        that the Company does not cure such event during that
                        ninety (90) day period).

                  (iv)  If the Employee terminates his employment other than for
                        Good Reason, the date that is ninety (90) days after
                        Notice of Termination is given.

                  (v)   If the Employee's employment is terminated by the
                        Company other than for Cause, the date that is ninety
                        (90) days after Notice of Termination is given.

6.       AMOUNTS PAYABLE UPON TERMINATION OF EMPLOYMENT OR DURING DISABILITY

         a.       TERMINATION PAYMENT

                  In the event that Employee's employment is terminated pursuant
                  to Section 5 hereof, the Employee shall not be entitled to any
                  compensation except as set forth below.

                  (i)   Any compensation that is accrued but unpaid, any
                        vacation that is accrued but unused, and any business
                        expenses that are payable, all as of the Date of
                        Termination.






                  (ii)  Any other rights and benefits (if any) provided under
                        plans and programs of the Company including accrued but
                        unexercised stock options, determined in accordance with
                        the applicable terms and provisions of such plans and
                        programs.

         b.       MITIGATION OF DAMAGES

                  Following any Date of Termination, the Employee shall have an
                  obligation to seek other employment provided that the Company
                  has performed its obligations in full as laid out in 6(a) as
                  at the Date of Termination.

7.       CONFIDENTIAL INFORMATION AND COVENANT NOT TO COMPETE

                  a.       The Employee hereby agrees that, during the term of
                  the Agreement and thereafter, he will not disclose to any
                  person or otherwise use or exploit any of the proprietary or
                  confidential information, including, without limitation, trade
                  secrets, processes, records of research, proposals,
                  programming, budgets or customer lists, regarding the Company,
                  its business, properties, or affairs obtained by him at any
                  time prior to or subsequent to the execution of this
                  Agreement, except to the extent required by his performance of
                  assigned duties for the Company.

         b.       The Employee hereby agrees that during the term hereof and for
                  a period of one (1) year after his termination of employment
                  (including upon Retirement), he will not engage in or carry
                  on, directly or indirectly, whether as advisor, principal,
                  agent, partner, officer, director, employee, stockholder,
                  associate or consultant of any person, partnership,
                  corporation or other business entity which is in material
                  competition with any business carried on, directly or
                  indirectly (through one or more subsidiaries or otherwise), by
                  the Company prior to the date hereof or hereafter conducted by
                  the Company during the term of this Agreement, directly or
                  indirectly (through one or more subsidiaries or otherwise) in
                  any county of the State of California or any other county of
                  any state in the United States or municipality of a foreign
                  country where business is then carried on or conducted by the
                  Company.

         c.       The Employee agrees that the remedy at law for any breach by
                  him of any of the covenants and agreements set forth in this
                  Section 7 will be inadequate and that in the event of any such
                  breach, the Company may, in addition to the other remedies
                  which may be available to it at law, obtain injunctive relief
                  prohibiting him (together with all those persons associated
                  with him) from the breach of such covenants and agreements.

         d.       The parties hereto agree that the duration and area for which
                  the covenant not to compete is set forth in subparagraph (b)
                  above. The parties intend that this covenant shall be deemed
                  to be a series of separate covenants, one for each and every
                  county of each and every state within the United States of
                  America and one for each municipality of any foreign country
                  where this covenant is intended to be effective.

         e.       The Employee will sign separate agreements, policies or
                  certifications regarding Intellectual Property, Ethical
                  Business Practices and Conflicts of






                  Interest, on reasonable terms and on such forms as are
                  adopted by the Company from time to time for its executives.

8.       GENERAL PROVISIONS

         a.       NOTICES

                  Any notice to be given pursuant to this Agreement shall be in
                  writing and shall be deemed duly given three (3) days after
                  deposit in certified mail, return receipt requested, to the
                  party to receive such notice at the address specified below:

                  If to the Company, to:

                                            Xenotech, Inc.
                                            Attn:  Mr. Robert G. Baker
                                            Suite 1/41 Walters Drive
                                            Osborne Park, 6017
                                            Western Australia
                                            Fax:  011-61-09-446-3340


                  If to the Employee, to

                                            Mr. Christopher Yewdall
                                            The Hayloft
                                            3, Polebrook Mews
                                            Spinney Drive
                                            Kirby Grange
                                            Botcheston
                                            Leicestershire
                                            LE9 9FG
                                            United Kingdom

                                            Email : CYewdall@NetcomUK.Co.UK

                  Either party may change its name and/or address for purposes
                  of this Section by giving the other written notice of the new
                  name and/or address in the manner set forth above.

         b.       ASSIGNMENT

                  This Agreement shall inure to the benefit of and be binding
                  upon the parties hereto and their respective executors,
                  administrators, heirs, personal representatives, successors
                  and assigns. Neither this Agreement nor any right hereunder
                  may be assigned or transferred by either party hereto, any
                  beneficiary or any other person, nor be subject to alienation,
                  anticipation, sale, pledge, encumbrance, execution, levy or
                  other legal process of any kind against the Employee, his
                  beneficiary, or any other person. Notwithstanding the
                  foregoing, the Company may assign this Agreement to any
                  corporation or other business entity succeeding to
                  substantially all of the business and assets of the Company






                  by merger, consolidation, sale of assets, or otherwise and may
                  obtain the assumption of this Agreement by such successor.

         c.       WAIVER OF BREACH

                  The waiver by the Company or the Employee of a breach of any
                  provision of this Agreement by the other shall not operate or
                  be construed as a waiver of any subsequent breach by the
                  other.

         d.       NON-EXCLUSIVITY OF RIGHTS

                  Nothing in this Agreement shall prevent or limit the
                  Employee's continuing or future participation in any
                  incentive, fringe benefit, deferred compensation, or other
                  plan or program provided by the Company and for which the
                  Employee may qualify, nor shall anything herein limit or
                  reduce such rights as the Employee may have under any other
                  agreements with the Company. Amounts that are vested benefits
                  or that the Employee is otherwise entitled to receive under
                  any plan or program of the Company at or after the Date of
                  Termination, shall be payable in accordance with such plan or
                  program.

         e.       ENTIRE AGREEMENT/MODIFICATION

                  This Agreement, shall supersede any and all other agreements,
                  either oral or written, between the parties hereto with
                  respect to the employment of the Employee by the Company. Each
                  party to this Agreement acknowledges that no other
                  representations, inducements, promises or agreements, orally
                  or otherwise, have been made by any party or anyone acting on
                  behalf of any party, and that no other agreement, statement or
                  promise with respect to the employment of the Employee by the
                  Company not contained in this Agreement shall be valid or
                  binding. Any modification of this Agreement will be effective
                  only if it is in writing, signed by the party to be charged.

         f.       PARTIAL INVALIDITY

                  If any provision of this Agreement is held by a court of
                  competent jurisdiction to be invalid, void or unenforceable,
                  the remaining provisions shall nevertheless continue in full
                  force without being impaired or invalidated in any way.

         g.       GOVERNING LAW

                  The validity of this Agreement and the interpretation and
                  performance of all of its terms shall be governed by the laws
                  of the State of California.

         h.       ARBITRATION

                  Any controversy, claim or dispute between the parties directly
                  or indirectly concerning this Agreement or the breach hereof,
                  or the subject matter hereof (except in instances where only
                  injunctive relief is sought by the either party), shall be
                  finally settled by arbitration held in the State of
                  California. Any legal expenses incurred by the Company in
                  connection with any such claim or dispute shall be paid by the
                  Company. To the extent that the Employee






                  prevails in any claim or disput to enforce or defend his
                  rights under this Agreement, any legal expenses incurred by
                  the Employee in such claim or dispute shall be paid by the
                  Company.

         i.       CAPTIONS

                  The captions in this Agreement are for convenience and for
                  identification purposes only, are not an integral part of this
                  Agreement and are not to be considered in the interpretation
                  of any part hereof.

         j.       COUNTERPARTS

                  This Agreement may be executed in one or more counterparts,
                  each of which shall be deemed an original, but together which
                  shall constitute one and the same document.


IN WITNESS WHEREOF, Xenotech, Inc., has caused this Agreement to be executed by
an appropriate officer and the Employee has executed the same as of the day and
year first above written.


                                         XENOTECH, INC.
                                         a Canadian corporation




                                         By:
                                            ------------------------------------
                                            Robert G. Baker
                                            President





                                         By:
                                            ------------------------------------
                                            Christopher M. Yewdall