EXHIBIT 10.2


                               JENNER TECHNOLOGIES
                                 1993 STOCK PLAN


         1. Purposes of the Plan. The purposes of this Stock Plan are to attract
and  retain  the  best   available   personnel  for  positions  of   substantial
responsibility,  to provide additional incentive to Employees and Consultants of
the Company  and its  Subsidiaries  and to promote the success of the  Company's
business.  Options  granted  under the Plan may be incentive  stock  options (as
defined  under  Section  422 of the Code) or  non-statutory  stock  options,  as
determined by the Administrator at the time of grant of an option and subject to
the  applicable  provisions  of Section  422 of the Code,  as  amended,  and the
regulations  promulgated  thereunder.  Stock purchase rights may also be granted
under the Plan.

         2. Definitions. As used herein, the following definitions shall apply:

                  (a)  "Administrator"  means the Board or any of its Committees
appointed pursuant to Section 4 of the Plan.

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

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

                  (d)  "Committee"  means a Committee  appointed by the Board of
Directors in accordance with Section 4 of the Plan.

                  (e) "Common Stock" means the Common Stock of the Company.

                  (f)  "Company"   means  Jenner   Technologies,   a  California
corporation.

                  (g) "Consultant" means any person,  including an advisor,  who
is engaged by the Company or any Parent or Subsidiary to render  services and is
compensated  for  such  services,  and  any  director  of  the  Company  whether
compensated  for such  services  or not  provided  that if and in the  event the
Company registers any class of any equity security pursuant to the Exchange Act,
the  term  Consultant  shall  thereafter  not  include  directors  who  are  not
compensated for their services or are paid only a director's fee by the Company.

                  (h)  "Continuous  Status as an Employee or  Consultant"  means
that the employment or consulting  relationship is not interrupted or terminated
by the Company,  any Parent or Subsidiary.  Continuous  Status as an Employee or
Consultant shall not be considered  interrupted in the case of: (i) any leave of
absence  approved by the Board,  including sick leave,  military  leave,  or any
other personal leave;  provided,  however,  that for purposes of Incentive Stock
Options,  any such leave may not exceed  ninety (90) days,  unless  reemployment
upon the expiration of such leave is guaranteed by contract  (including  certain
Company policies) or statute; or (ii) transfers between locations of the Company
or between the Company, its Parent, its Subsidiaries or its successor.


                                       






                  (i)  "Employee"  means  any  person,  including  officers  and
directors,  employed by the Company or any Parent or  Subsidiary of the Company.
The  payment of a  director's  fee by the  Company  shall not be  sufficient  to
constitute "employment" by the Company.

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

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

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

                  (ii) If the Common  Stock is quoted on the NASDAQ  System (but
not on the National Market System  thereof) or regularly  quoted by a recognized
securities  dealer but selling  prices are not  reported,  its Fair Market Value
shall be the mean between the high bid and low asked prices for the Common Stock
or;

                  (iii) In the absence of an  established  market for the Common
Stock,  the Fair Market Value  thereof  shall be determined in good faith by the
Administrator.

                  (l)  "Incentive  Stock  Option"  means an Option  intended  to
qualify as an incentive  stock  option  within the meaning of Section 422 of the
Code.

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

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

                  (o)  "Optioned  Stock"  means the Common  Stock  subject to an
Option or a Stock Purchase Right.

                  (p) "Optionee" means an Employee or Consultant who receives an
Option or Stock Purchase Right.

                  (q)  "Parent"  means a "parent  corporation",  whether  now or
hereafter existing, as defined in Section 424(e) of the Code.

                  (r) "Plan" means this 1993 Stock Plan.



                                       -2-






                  (s)  "Restricted  Stock" means shares of Common Stock acquired
pursuant to a grant of a Stock Purchase Right under Section 11 below.

                  (t) "Share" means a share of the Common Stock,  as adjusted in
accordance with  Section 12 below.

                  (u) "Stock  Purchase Right" means the right to purchase Common
Stock pursuant to Section 11 below.

                  (v) "Subsidiary" means a "subsidiary corporation", whether now
or hereafter existing, as defined in Section 424(f) of the Code.

         3. Stock Subject to the Plan.  Subject to the  provisions of Section 12
of the Plan,  the maximum  aggregate  number of shares which may be optioned and
sold  under the Plan is  1,250,000  shares of Common  Stock.  The  shares may be
authorized, but unissued, or reacquired Common Stock.

                  If an Option  should  expire or become  unexercisable  for any
reason without having been exercised in full, the unpurchased  Shares which were
subject  thereto  shall,  unless  the Plan shall  have been  terminated,  become
available for future grant under the Plan.

         4. Administration of the Plan.

                  (a) Initial Plan  Procedure.  Prior to the date,  if any, upon
which the  Company  becomes  subject  to the  Exchange  Act,  the Plan  shall be
administered by the Board or a committee appointed by the Board.

                  (b) Plan  Procedure  After the Date,  if any,  Upon  Which the
Company Becomes Subject to the Exchange Act.

                           (i)  Administration  With  Respect to  Directors  and
Officers.  With  respect  to  grants  of  Options  or Stock  Purchase  Rights to
Employees who are also  officers or directors of the Company,  the Plan shall be
administered by (A) the Board if the Board may administer the Plan in compliance
with Rule 16b-3  promulgated  under the  Exchange Act or any  successor  thereto
("Rule  16b-3")  with  respect to a plan  intended  to qualify  thereunder  as a
discretionary plan, or (B) a committee designated by the Board to administer the
Plan,  which  committee  shall be  constituted in such a manner as to permit the
Plan to comply  with Rule  16b-3  with  respect  to a plan  intended  to qualify
thereunder  as a  discretionary  plan.  Once  appointed,  such  Committee  shall
continue to serve in its  designated  capacity until  otherwise  directed by the
Board.  From time to time the Board may increase the size of the  Committee  and
appoint additional  members thereof,  remove members (with or without cause) and
appoint new members in substitution  therefor,  fill vacancies,  however caused,
and remove all members of the Committee and thereafter  directly  administer the
Plan, all to the extent  permitted by Rule 16b-3 with respect to a plan intended
to qualify thereunder as a discretionary plan.



                                       -3-






                           (ii) Multiple  Administrative Bodies. If permitted by
Rule 16b-3,  the Plan may be  administered  by different  bodies with respect to
directors,  non-director  officers and Employees  who are neither  directors nor
officers.

                           (iii)  Administration With Respect to Consultants and
Other  Employees.  With respect to grants of Options or Stock Purchase Rights to
Employees or Consultants who are neither  directors nor officers of the Company,
the Plan shall be administered by (A) the Board or (B) a committee designated by
the Board,  which  committee shall be constituted in such a manner as to satisfy
the legal requirements  relating to the administration of incentive stock option
plans, if any, of California  corporate and securities laws, of the Code, and of
any applicable  stock exchange (the  "Applicable  Laws").  Once appointed,  such
Committee  shall  continue to serve in its designated  capacity until  otherwise
directed by the Board.  From time to time the Board may increase the size of the
Committee  and appoint  additional  members  thereof,  remove  members  (with or
without cause) and appoint new members in substitution therefor, fill vacancies,
however caused, and remove all members of the Committee and thereafter  directly
administer the Plan, all to the extent permitted by the Applicable Laws.

                  (c) Powers of the Administrator.  Subject to the provisions of
the Plan and in the case of a Committee,  the specific  duties  delegated by the
Board  to  such  Committee,   and  subject  to  the  approval  of  any  relevant
authorities,  including the approval,  if required,  of any stock  exchange upon
which the Common Stock is listed, the Administrator shall have the authority, in
its discretion:

                           (i) to determine  the Fair Market Value of the Common
Stock, in accordance with Section 2(k) of the Plan;

                           (ii) to select the  Consultants and Employees to whom
Options and Stock Purchase Rights may from time to time be granted hereunder;

                           (iii) to determine whether and to what extent Options
and Stock Purchase Rights or any combination thereof are granted hereunder;

                           (iv) to  determine  the  number  of  shares of Common
Stock to be covered by each such award granted hereunder;

                           (v) to approve  forms of agreement  for use under the
Plan;

                           (vi) to  determine  the  terms  and  conditions,  not
inconsistent with the terms of the Plan, of any award granted hereunder;

                           (vii) to reduce the  exercise  price of any Option to
the then  current Fair Market Value if the Fair Market Value of the Common Stock
covered  by such  Option  shall  have  declined  since the date the  Option  was
granted; and


                                       -4-






                           (viii)  to  determine  the  terms  and   restrictions
applicable  to Stock  Purchase  Rights and the  Restricted  Stock  purchased  by
exercising such Stock Purchase Rights.

                  (d)  Effect  of  Administrator's   Decision.   All  decisions,
determinations  and  interpretations  of the  Administrator  shall be final  and
binding on all Optionees and any other holders of any Options or Stock  Purchase
Rights.

         5. Eligibility.

                  (a)  Nonstatutory  Stock Options and Stock Purchase Rights may
be granted to Employees and Consultants.  Incentive Stock Options may be granted
only to Employees.  An Employee or Consultant  who has been granted an Option or
Stock Purchase Right may, if otherwise  eligible,  be granted additional Options
or Stock Purchase Rights.

                  (b) Each Option  shall be  designated  in the  written  option
agreement as either an Incentive  Stock Option or a  Nonstatutory  Stock Option.
However,  notwithstanding  such  designations,  to the extent that the aggregate
Fair Market  Value of the Shares with  respect to which  Options  designated  as
Incentive  Stock  Options  are  exercisable  for the first time by any  Optionee
during  any  calendar  year  (under  all plans of the  Company  or any Parent or
Subsidiary)   exceeds  $100,000,   such  excess  Options  shall  be  treated  as
Nonstatutory Stock Options.

                  (c) For  purposes of Section  5(b),  Incentive  Stock  Options
shall be taken into  account in the order in which  they were  granted,  and the
Fair Market  Value of the Shares shall be  determined  as of the time the Option
with respect to such Shares is granted.

                  (d) The Plan shall not confer upon any Optionee any right with
respect to  continuation  of  employment  or  consulting  relationship  with the
Company,  nor  shall  it  interfere  in any way  with  his or her  right  or the
Company's right to terminate his or her employment or consulting relationship at
any time, with or without cause.

         6. Term of Plan.  The Plan shall become  effective  upon the earlier to
occur  of its  adoption  by the  Board  of  Directors  or  its  approval  by the
shareholders  of the Company as  described  in Section 18 of the Plan.  It shall
continue in effect for a term of ten (10) years unless sooner  terminated  under
Section 14 of the Plan.

         7. Term of Option.  The term of each Option shall be the term stated in
the Option Agreement; provided, however, that the term shall be no more than ten
(10) years from the date of grant thereof.  However, in the case of an Incentive
Stock Option granted to an Optionee who, at the time the Option is granted, owns
stock  representing  more  than ten  percent  (10%) of the  voting  power of all
classes of stock of the  Company or any  Parent or  Subsidiary,  the term of the
Option  shall be five (5) years from the date of grant  thereof or such  shorter
term as may be provided in the Option Agreement.


                                       -5-






         8. Option Exercise Price and Consideration.

                  (a) The per share  exercise  price for the Shares to be issued
pursuant to exercise of an Option  shall be such price as is  determined  by the
Board, but shall be subject to the following:

                           (i)      In the case of an Incentive Stock Option

                                    (A) granted to an Employee  who, at the time
of the grant of such Incentive Stock Option,  owns stock  representing more than
ten percent  (10%) of the voting power of all classes of stock of the Company or
any Parent or  Subsidiary,  the per Share  exercise  price shall be no less than
110% of the Fair Market Value per Share on the date of grant.

                                    (B) granted to any  Employee,  the per Share
exercise  price shall be no less than 100% of the Fair Market Value per Share on
the date of grant.

                           (ii)     In the case of a Nonstatutory Stock Option

                                    (A)  granted to a person who, at the time of
the grant of such Option, owns stock representing more than ten percent (10%) of
the  voting  power of all  classes,  of stock of the  Company  or any  Parent or
Subsidiary,  the per Share exercise price shall be no less than 110% of the Fair
Market Value per Share on the date of the grant.

                                    (B)  granted  to any  person,  the per Share
exercise  price shall be no less than 85% of the Fair Market  Value per Share on
the date of grant.

                  (b) The  consideration  to be paid for the Shares to be issued
upon exercise of an Option, including the method of payment, shall be determined
by the  Administrator  (and, in the case of an Incentive Stock Option,  shall be
determined  at the time of grant)  and may  consist  entirely  of (1) cash,  (2)
check,  (3)  promissory  note,  (4) other Shares which (x) in the case of Shares
acquired  upon  exercise of an Option either have been owned by the Optionee for
more than six months on the date of surrender or were not acquired,  directly or
indirectly,  from the  Company,  and (y) have a Fair Market Value on the date of
surrender  equal to the aggregate  exercise price of the Shares as to which said
Option shall be exercised,  (5) delivery of a properly  executed exercise notice
together with such other  documentation as the  Administrator and the broker, if
applicable,  shall  require to effect an exercise of the Option and  delivery to
the Company of the sale or loan proceeds  required to pay the exercise price, or
(6)  any  combination  of the  foregoing  methods  of  payment.  In  making  its
determination  as to the  type of  consideration  to  accept,  the  Board  shall
consider if  acceptance  of such  consideration  may be  reasonably  expected to
benefit the Company.

         9.       Exercise of Option.

                  (a)  Procedure  for  Exercise;  Rights as a  Shareholder.  Any
Option  granted  hereunder  shall be  exercisable  at such  times and under such
conditions as determined by the Board,


                                       -6-






including  performance criteria with respect to the Company and/or the Optionee,
and as shall be permissible under the terms of the Plan.

                           An Option may not be  exercised  for a fraction  of a
Share.

                           An  Option  shall  be  deemed  to be  exercised  when
written notice of such exercise has been given to the Company in accordance with
the terms of the Option by the person  entitled to exercise  the Option and full
payment for the Shares with  respect to which the Option is  exercised  has been
received by the Company.  Full payment may, as authorized by the Board,  consist
of any  consideration  and method of payment allowable under Section 8(b) of the
Plan. Until the issuance (as evidenced by the appropriate  entry on the books of
the Company or of a duly authorized  transfer agent of the Company) of the stock
certificate evidencing such Shares, no right to vote or receive dividends or any
other rights as a  shareholder  shall exist with respect to the Optioned  Stock,
notwithstanding the exercise of the Option. The Company shall issue (or cause to
be issued)  such stock  certificate  promptly  upon  exercise of the Option.  No
adjustment  will be made for a dividend or other right for which the record date
is prior to the date the stock  certificate  is issued,  except as  provided  in
Section 12 of the Plan.

                           Exercise of an Option in any manner shall result in a
decrease in the number of Shares which  thereafter  may be  available,  both for
purposes of the Plan and for sale under the  Option,  by the number of Shares as
to which the Option is exercised.

                  (b) Termination of Employment.  In the event of termination of
an Optionee's  Continuous  Status as an Employee or Consultant with the Company,
such  Optionee  may, but only within such period of time as is determined by the
Administrator, of at least thirty (30) days, with such determination in the case
of an Incentive  Stock Option not  exceeding  three (3) months after the date of
such  termination (but in no event later than the expiration date of the term of
such Option as set forth in the Option Agreement), exercise his or her Option to
the  extent  that  Optionee  was  entitled  to  exercise  it at the date of such
termination. To the extent that Optionee was not entitled to exercise the Option
at the date of such termination, or if Optionee does not exercise such Option to
the  extent so  entitled  within the time  specified  herein,  the Option  shall
terminate.

                  (c) Disability of Optionee.  Notwithstanding the provisions of
Section 9(b) above,  in the event of  termination  of an  Optionee's  Continuous
Status as an  Employee  or  Consultant  as a result  of his total and  permanent
disability,  Optionee  may, but only within  twelve (12) months from the date of
such  termination (but in no event later than the expiration date of the term of
such Option as set forth in the Option  Agreement),  exercise  the Option to the
extent otherwise entitled to exercise it at the date of such termination. To the
extent that  Optionee  was not  entitled  to exercise  the Option at the date of
termination,  or if  Optionee  does not  exercise  such  Option to the extent so
entitled within the time specified herein, the Option shall terminate.

                  (d)  Death of  Optionee.  In the  event of  termination  of an
Optionee's  Continuous  Status as an Employee or  Consultant  as a result of the
death of an Optionee,  the Option may be  exercised,  at any time within  twelve
(12) months following the date of death (but in no event later


                                       -7-






than the  expiration  date of the term of such Option as set forth in the Option
Agreement),  by the  Optionee's  estate or by a person who acquired the right to
exercise  the  Option by  bequest  or  inheritance,  but only to the  extent the
Optionee was entitled to exercise the Option at the date of death. To the extent
that  Optionee was not entitled to exercise the Option at the date of death,  or
if Optionee does not exercise  such Option to the extent so entitled  within the
time specified herein, the Option shall terminate.

                  (e) Rule 16b-3.. Options granted to persons subject to Section
16(b) of the  Exchange  Act must comply with Rule 16b-3 and shall  contain  such
additional  conditions or restrictions as may be required  thereunder to qualify
for the maximum  exemption  from  Section 16 of the Exchange Act with respect to
Plan transactions.

         10.  Non-Transferability  of Options and Stock Purchase Rights. Options
and Stock  Purchase  Rights may not be sold,  pledged,  assigned,  hypothecated,
transferred,  or disposed of in any manner  other than by will or by the laws of
descent  or  distribution  and may be  exercised,  during  the  lifetime  of the
Optionee, only by the Optionee.

         11.      Stock Purchase Rights.

                  (a) Rights to Purchase.  Stock  Purchase  Rights may be issued
either alone,  in addition to, or in tandem with other awards  granted under the
Plan  and/or  cash  awards  made  outside of the Plan.  After the  Administrator
determines  that it will offer Stock  Purchase  Rights under the Plan,  it shall
advise the offeree in writing of the terms,  conditions and restrictions related
to the offer,  including the number of Shares that such person shall be entitled
to  purchase,  the price to be paid,  and the time within which such person must
accept such offer, which shall in no event exceed thirty (30) days from the date
upon which the Administrator  made the determination to grant the Stock Purchase
Right.  The offer shall be accepted by execution of a Restricted  Stock purchase
agreement in the form determined by the Administrator. Shares purchased pursuant
to the  grant  of a  Stock  Purchase  Right  shall  be  referred  to  herein  as
"Restricted Stock."

                  (b) Repurchase  Option.  Unless the  Administrator  determines
otherwise,  the Restricted  Stock purchase  agreement  shall grant the Company a
repurchase option  exercisable upon the voluntary or involuntary  termination of
the purchaser's  employment with the Company for any reason  (including death or
Disability).   The  purchase  price  for  Shares  repurchased  pursuant  to  the
Restricted  Stock  purchase  agreement  shall be the original  price paid by the
purchaser and may be paid by cancellation  of any  indebtedness of the purchaser
to the Company.  The repurchase option shall lapse at such rate as the Committee
may determine, but at a minimum rate of 20% per year.

                  (c) Other Provisions.  The Restricted Stock purchase agreement
shall contain such other terms,  provisions and conditions not inconsistent with
the Plan as may be determined by the  Administrator in its sole  discretion.  In
addition, the provisions of Restricted Stock purchase agreements need not be the
same with respect to each purchaser.



                                      -8-






                  (d) Rights as a Shareholder.  Once the Stock Purchase Right is
exercised,  the  purchaser  shall  have  the  rights  equivalent  to  those of a
shareholder, and shall be a shareholder when his or her purchase is entered upon
the records of the duly authorized  transfer agent of the Company. No adjustment
will be made for a dividend or other right for which the record date is prior to
the date the Stock Purchase Right is exercised, except as provided in Section 12
of the Plan.

         12.      Adjustments Upon Changes in Capitalization or Merger.

                  (a) Changes in Capitalization.  Subject to any required action
by the shareholders of the Company, the number of shares of Common Stock covered
by each outstanding  Option or Stock Purchase Right, and the number of shares of
Common Stock which have been  authorized  for issuance  under the Plan but as to
which no Options or Stock  Purchase  Rights have yet been  granted or which have
been returned to the Plan upon  cancellation or expiration of an Option or Stock
Purchase  Right,  as well as the price per share of Common Stock covered by each
such  outstanding  Option  or Stock  Purchase  Right,  shall be  proportionately
adjusted for any  increase or decrease in the number of issued  shares of Common
Stock  resulting  from a stock  split,  reverse  stock  split,  stock  dividend,
combination or  reclassification  of the Common Stock,  or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of  consideration  by the Company;  provided,  however,  that  conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of  consideration."  Such adjustment shall be made by the Board,
whose  determination  in that respect  shall be final,  binding and  conclusive.
Except as  expressly  provided  herein,  no issuance by the Company of shares of
stock of any class, or securities convertible into shares of stock of any class,
shall affect, and no adjustment by reason thereof shall be made with respect to,
the  number or price of shares of  Common  Stock  subject  to an Option or Stock
Purchase Right.

                  (b) Dissolution or  Liquidation.  In the event of the proposed
dissolution or  liquidation of the Company,  the Board shall notify the Optionee
at least fifteen (15) days prior to such proposed  action.  To the extent it has
not been previously exercised, the Option or Stock Purchase Right will terminate
immediately prior to the consummation of such proposed action.

                  (c) Merger.  In the event of a merger of the  Company  with or
into another corporation, the Option or Stock Purchase Right shall be assumed or
an equivalent option or right shall be substituted by such successor corporation
or a parent or subsidiary of such successor corporation.  If, in such event, the
Option or Stock  Purchase  Right is not  assumed or  substituted,  the Option or
Stock  Purchase  Right  shall  terminate  as of the date of the  closing  of the
merger.  For the purposes of this paragraph,  the Option or Stock Purchase Right
shall be  considered  assumed  if,  following  the  merger,  the option or right
confers the right to purchase,  for each Share of Optioned  Stock subject to the
Option  or  Stock  Purchase  Right   immediately   prior  to  the  merger,   the
consideration (whether stock, cash, or other securities or property) received in
the merger by holders of Common Stock for each Share held on the effective  date
of the transaction (and if holders were offered a choice of  consideration,  the
type of  consideration  chosen by the holders of a majority  of the  outstanding
Shares);  provided,  however, that if such consideration  received in the merger
was not solely  common stock of the  successor  corporation  or its Parent,  the
Administrator may, with the


                                       -9-






consent  of the  successor  corporation  and the  participant,  provide  for the
consideration  to be received upon the exercise of the Option or Stock  Purchase
Right,  for each Share of Optioned Stock subject to the Option or Stock Purchase
Right,  to be solely  common stock of the  successor  corporation  or its Parent
equal in fair market value to the per share consideration received by holders of
Common Stock in the merger.

         13. Time of Granting  Options and Stock  Purchase  Rights.  The date of
grant of an Option or Stock Purchase Right shall, for all purposes,  be the date
on which the Administrator makes the determination granting such Option or Stock
Purchase Right, or such other date as is determined by the Board.  Notice of the
determination shall be given to each Employee or Consultant to whom an Option or
Stock Purchase  Right is so granted  within a reasonable  time after the date of
such grant.

         14.      Amendment and Termination of the Plan.

                  (a)  Amendment  and  Termination.  The  Board  may at any time
amend,  alter,  suspend or discontinue  the Plan, but no amendment,  alteration,
suspension or discontinuation shall be made which would impair the rights of any
Optionee  under any grant  theretofore  made,  without  his or her  consent.  In
addition,  to the extent necessary and desirable to comply with Rule 16b-3 under
the Exchange Act or with Section 422 of the Code (or any other applicable law or
regulation,  including  the  requirements  of the NASD or an  established  stock
exchange),  the Company shall obtain shareholder  approval of any Plan amendment
in such a manner and to such a degree as required.

                  (b) Effect of Amendment or Termination.  Any such amendment or
termination  of the Plan  shall not  affect  Options  or Stock  Purchase  Rights
already  granted and such Options and Stock Purchase Rights shall remain in full
force and  effect as if this Plan had not been  amended  or  terminated,  unless
mutually agreed  otherwise  between the Optionee and the Board,  which agreement
must be in writing and signed by the Optionee and the Company.

         15.  Conditions  Upon  Issuance of Shares.  Shares  shall not be issued
pursuant  to the  exercise  of an  Option or Stock  Purchase  Right  unless  the
exercise of such Option or Stock Purchase Right and the issuance and delivery of
such Shares pursuant  thereto shall comply with all relevant  provisions of law,
including,  without  limitation,  the  Securities  Act of 1933, as amended,  the
Exchange  Act,  the  rules  and  regulations  promulgated  thereunder,  and  the
requirements of any stock exchange upon which the Shares may then be listed, and
shall be further subject to the approval of counsel for the Company with respect
to such compliance.

                  As a condition to the exercise of an Option or Stock  Purchase
Right,  the  Company  may  require  the person  exercising  such Option or Stock
Purchase  Right to represent  and warrant at the time of any such  exercise that
the Shares are being  purchased  only for  investment  and  without  any present
intention  to sell or  distribute  such Shares if, in the opinion of counsel for
the  Company,  such a  representation  is required by any of the  aforementioned
relevant provisions of law.



                                      -10-





         16. Reservation of Shares.  The Company,  during the term of this Plan,
will at all times reserve and keep  available  such number of Shares as shall be
sufficient to satisfy the requirements of the Plan.

                  The  inability  of the  Company to obtain  authority  from any
regulatory body having jurisdiction,  which authority is deemed by the Company's
counsel to be necessary to the lawful issuance and sale of any Shares hereunder,
shall relieve the Company of any liability in respect of the failure to issue or
sell  such  Shares  as to which  such  requisite  authority  shall not have been
obtained.

         17. Agreements. Options and Stock Purchase Rights shall be evidenced by
written agreements in such form as the Board shall approve from time to time.

         18. Shareholder  Approval.  Continuance of the Plan shall be subject to
approval by the  shareholders of the Company within twelve (12) months before or
after the date the Plan is adopted.  Such shareholder approval shall be obtained
in the degree and manner required under applicable state and federal law and the
rules of any stock exchange upon which the Common Stock is listed.

         19. Information to Optionees and Purchasers.  The Company shall provide
to each  Optionee and to each  individual  who acquired  Shares  pursuant to the
Plan,  during the period such  Optionee or purchaser  has one or more Options or
Stock  Purchase  Rights  outstanding,  and,  in the  case of an  individual  who
acquired  Shares  pursuant to the Plan,  during the period such  individual owns
such Shares,  copies of all annual  reports and other  information.  The Company
shall not be required to provide such  information to key employees whose duties
in connection with the Company assure their access to equivalent information.



                                      -11-