1
                                                                 EXHIBIT 10.16

                                 IMMUSOL, INC.

                                1992 STOCK PLAN

                             STOCK OPTION AGREEMENT

         Unless otherwise defined herein, the terms defined in the Plan shall
have the same defined meanings in this Option Agreement.

I. NOTICE OF STOCK OPTION GRANT


_________________________________

_________________________________


         You have been granted an option to purchase Common Stock of the
Company, subject to the terms and conditions of the Plan and this Option
Agreement, as follows:

Date of Grant                          ________________________________

Vesting Commencement Date              ________________________________

Exercise Price per Share               ________________________________

Total Number of Shares Granted         ________________________________

Total Exercise Price                   ________________________________

Type of Option:                             X    Incentive Stock Option
                                          ------
                                          ______ Nonstatutory Stock Option

Term/Expiration Date:                  _________________________________

     Vesting Schedule:
     -----------------
          This Option may be exercised, in whole or in part, in accordance with
the following schedule:





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Termination Period:

         This Option may be exercised for 30 days after termination of
employment or consulting relationship, or such longer period as may be
applicable upon death or disability of Optionee as provided in the Plan, but in
no event later than the Term/Expiration Date as provided above.

II.  AGREEMENT

         1.      Grant of Option.  Immusol, Inc., a California corporation (the
"Company"), hereby grants to the Optionee named in the Notice of Grant (the
"Optionee"), an option (the "Option") to purchase the total number of shares of
Common Stock (the "Shares") set forth in the Notice of Grant, at the exercise
price per share set forth in the Notice of Grant subject to the terms,
definitions and provisions of the 1992 Stock Plan (the "Plan") adopted by the
Company, which is incorporated herein by reference.  Unless otherwise defined
herein, the terms defined in the Plan shall have the same defined meanings in
this Option.

                 If designated in the Notice of Grant as an Incentive Stock
Option ("ISO"), this Option is intended to qualify as an Incentive Stock Option
as defined in Section 422 of the Code.  However, if this Option is intended to
be an Incentive Stock Option, to the extent that it exceeds the $100,000 rule
of Code Section 422(d) it shall be treated as a Nonstatutory Stock Option
("NSO").

         2.      Exercise of Option.  This Option shall be exercisable during
its term in accordance with the Vesting Schedule set out in the Notice of Grant
and with the provisions of Section 9 of the Plan as follows:

                 (i)      Right to Exercise.

                          (a)     This Option may not be exercised for a
fraction of a Share.

                          (b)     In the event of Optionee's death, disability
or other termination of the employment or consulting relationship, the
exercisability of the Option is governed by Sections 6, 7 and 8 below, subject
to the limitation contained in subsection 2(i)(c).

                          (c)     In no event may this Option be exercised
after the date of expiration of the term of this Option as set forth in the
Notice of Grant.

                 (ii)     Method of Exercise.  This Option shall be exercisable
by written notice (in the form attached as Exhibit A) which shall state the
election to exercise the Option, the number of Shares in respect of which the
Option is being exercised, and such other representations and agreements as to
the holder's investment intent with respect to such shares





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of Common Stock as may be required by the Company pursuant to the provisions of
the Plan.  Such written notice shall be signed by the Optionee and shall be
delivered in person or by certified mail to the Secretary of the Company.  The
written notice shall be accompanied by payment of the exercise price.  This
Option shall be deemed to be exercised upon receipt by the Company of such
written notice accompanied by the exercise price.

                 No Shares will be issued pursuant to the exercise of an Option
unless such issuance and such exercise shall comply with all relevant
provisions of law and the requirements of any stock exchange upon which the
Shares may then be listed.  Assuming such compliance, for income tax purposes
the Shares shall be considered transferred to the Optionee on the date on which
the Option is exercised with respect to such Shares.

         3.      Optionee's Representations.  In the event the Shares
purchasable pursuant to the exercise of this Option have not been registered
under the Securities Act of 1933, as amended, at the time this Option is
exercised, Optionee shall, if required by the Company, concurrently with the
exercise of all or any portion of this Option, deliver to the Company his or
her Investment Representation Statement in the form attached hereto as Exhibit
B, and shall read the applicable rules of the Commissioner of Corporations
attached to such Investment Representation Statement.

         4.      Method of Payment.  Payment of the exercise price shall be by
any of the following, or a combination thereof, at the election of the
Optionee:

                 (i)      cash; or

                 (ii)     check; or

                 (iii)    surrender of other shares of Common Stock of the
Company which (A) in the case of Shares acquired pursuant to the exercise of an
Option, have been owned by the Optionee for more than six (6) months on the
date of surrender, and (B) have a Fair Market Value on the date of surrender
equal to the exercise price of the Shares as to which the Option is being
exercised; or

                 (iv)     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

                 (v)      any combination of the foregoing methods of payment; 
or

                 (vi)     such other consideration and method of payment for
the issuance of Shares to the extent permitted under Applicable Laws.





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         5.      Restrictions on Exercise.  This Option may not be exercised
until such time as the Plan has been approved by the shareholders of the
Company, or if the issuance of such Shares upon such exercise or the method of
payment of consideration for such shares would constitute a violation of any
applicable federal or state securities or other law or regulation, including
any rule under Part 207 of Title 12 of the Code of Federal Regulations
("Regulation G") as promulgated by the Federal Reserve Board.  As a condition
to the exercise of this Option, the Company may require Optionee to make any
representation and warranty to the Company as may be required by any applicable
law or regulation.

         6.      Termination of Relationship.  In the event an Optionee's
Continuous Status as an Employee or Consultant terminates, Optionee may, to the
extent otherwise so entitled at the date of such termination (the "Termination
Date"), exercise this Option during the Termination Period set out in the
Notice of Grant.  To the extent that Optionee was not entitled to exercise this
Option at the date of such termination, or if Optionee does not exercise this
Option within the time specified herein, the Option shall terminate.

         7.      Disability of Optionee.  Notwithstanding the provisions of
Section 6 above, in the event of termination of an Optionee's consulting
relationship or Continuous Status as an Employee as a result of his or her
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;
provided, however, that if such disability is not a "disability" as such term
is defined in Section 22(e)(3) of the Code, in the case of an Incentive Stock
Option such Incentive Stock Option shall automatically convert to a
Nonstatutory Stock Option on the day three months and one day following 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, and the Shares covered by such Option shall revert to the Plan.

         8.      Death of Optionee.  In the event of termination of Optionee's
Continuous Status as an Employee or Consultant as a result of the death of
Optionee, the Option may be exercised at any time within twelve (12) months
following the date of death (but in no event later than the date of expiration
of the term of this Option as set forth in Section 10 below), by 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 could exercise the Option
at the date of death.

         9.      Non-Transferability of Option.  This Option may not be
transferred in any manner otherwise than by will or by the laws of descent or
distribution and may be exercised during the lifetime of Optionee only by
Optionee.  The terms of this Option shall be binding upon the executors,
administrators, heirs, successors and assigns of the Optionee.





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         10.     Term of Option.  This Option may be exercised only within the
term set out in the Notice of Grant, and may be exercised during such term only
in accordance with the Plan and the terms of this Option.  The limitations set
out in Section 7 of the Plan regarding Options designated as Incentive Stock
Options and Options granted to more than ten percent (10%) shareholders shall
apply to this Option.

         11.     Taxation Upon Exercise of Option.  Optionee understands that,
upon exercising a Nonstatutory Option, he or she will recognize income for tax
purposes in an amount equal to the excess of the then Fair Market Value of the
Shares over the exercise price.  However, the timing of this income recognition
may be deferred for up to six months if Optionee is subject to Section 16 of
the Securities Exchange Act of 1934, as amended (the "Exchange Act").  If the
Optionee is an Employee, the Company will be required to withhold from
Optionee's compensation, or collect from Optionee and pay to the applicable
taxing authorities an amount equal to a percentage of this compensation income.
Additionally, the Optionee may at some point be required to satisfy tax
withholding obligations with respect to the disqualifying disposition of an
Incentive Stock Option. The Optionee shall satisfy his or her tax withholding
obligation arising upon the exercise of this Option out of Optionee's
compensation or by payment to the Company.

         12.     Tax Consequences.  Set forth below is a brief summary as of
the date of this Option of some of the federal and California tax consequences
of exercise of this Option and disposition of the Shares.  THIS SUMMARY IS
NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE.
OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THIS OPTION OR
DISPOSING OF THE SHARES.

                 (i)      Exercise of ISO.  If this Option qualifies as an ISO,
there will be no regular federal income tax liability or California income tax
liability upon the exercise of the Option, although the excess, if any, of the
Fair Market Value of the Shares on the date of exercise over the exercise price
will be treated as an adjustment to the alternative minimum tax for federal tax
purposes and may subject the Optionee to the alternative minimum tax in the
year of exercise.

                 (ii)     Exercise of ISO Following Disability.  If the
Optionee's Continuous Status as an Employee or Consultant terminates as a
result of disability that is not total and permanent disability as defined in
Section 22(e)(3) of the Code, to the extent permitted on the date of
termination, the Optionee must exercise an ISO within 90 days of such
termination for the ISO to be qualified as an ISO.

                 (iii)    Exercise of Nonstatutory Stock Option.  There may be
a regular federal income tax liability and California income tax liability upon
the exercise of a Nonstatutory Stock Option.  The Optionee will be treated as
having received compensation income (taxable





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at ordinary income tax rates) equal to the excess, if any, of the Fair Market
Value of the Shares on the date of exercise over the exercise price.  If
Optionee is an Employee, the Company will be required to withhold from
Optionee's compensation or collect from Optionee and pay to the applicable
taxing authorities an amount equal to a percentage of this compensation income
at the time of exercise.

                 (iv)     Disposition of Shares.  In the case of an NSO, if
Shares are held for at least one year, any gain realized on disposition of the
Shares will be treated as long-term capital gain for federal and California
income tax purposes.  In the case of an ISO, if Shares transferred pursuant to
the Option are held for at least one year after exercise and are disposed of at
least two years after the Date of Grant, any gain realized on disposition of
the Shares will also be treated as long-term capital gain for federal and
California income tax purposes.  If Shares purchased under an ISO are disposed
of within such one-year period or within two years after the Date of Grant, any
gain realized on such disposition will be treated as compensation income
(taxable at ordinary income rates) to the extent of the difference between the
exercise price and the lesser of (1) the Fair Market Value of the Shares on the
date of exercise, or (2) the sale price of the Shares.

                 (v)      Notice of Disqualifying Disposition of ISO Shares.
If the Option granted to Optionee herein is an ISO, and if Optionee sells or
otherwise disposes of any of the Shares acquired pursuant to the ISO on or
before the later of (1) the date two years after the Date of Grant, or (2) the
date one year after the date of exercise, the Optionee shall immediately notify
the Company in writing of such disposition.  Optionee agrees that Optionee may
be subject to income tax withholding by the Company on the compensation income
recognized by the Optionee.

                                       Immusol, Inc.,
                                       a California corporation


                                       By: _____________________________

OPTIONEE ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE
OPTION HEREOF IS EARNED ONLY BY CONTINUING CONSULTANCY OR EMPLOYMENT AT THE
WILL OF THE COMPANY (NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS
OPTION OR ACQUIRING SHARES HEREUNDER).  OPTIONEE FURTHER ACKNOWLEDGES AND
AGREES THAT NOTHING IN THIS AGREEMENT, NOR IN THE COMPANY'S STOCK OPTION PLAN
WHICH IS INCORPORATED HEREIN BY REFERENCE, SHALL CONFER UPON OPTIONEE ANY RIGHT
WITH RESPECT TO CONTINUATION OF EMPLOYMENT OR CONSULTANCY BY THE COMPANY, NOR
SHALL IT INTERFERE IN ANY WAY WITH OPTIONEE'S RIGHT OR THE COMPANY'S RIGHT TO





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TERMINATE OPTIONEE'S EMPLOYMENT OR CONSULTANCY AT ANY TIME, WITH OR WITHOUT
CAUSE.

         Optionee acknowledges receipt of a copy of the Plan and represents
that he is familiar with the terms and provisions thereof, and hereby accepts
this Option subject to all of the terms and provisions thereof.  Optionee has
reviewed the Plan and this Option in their entirety, has had an opportunity to
obtain the advice of counsel prior to executing this Option and fully
understands all provisions of the Option.  Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the
Administrator upon any questions arising under the Plan or this Option.
Optionee further agrees to notify the Company upon any change in the residence
address indicated below.


Dated: _______________                     _______________________________
                                           Optionee

                                           Residence Address:

                                           ________________________________

                                           ________________________________





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EXHIBIT A

                                1992 STOCK PLAN

                                EXERCISE NOTICE


Immusol, Inc.
3050 Science Park Road
San Diego, CA  92121
Attention:  Tsvi Goldenberg

         1.      Exercise of Option.  Effective as of today, ___________, 19__,
the undersigned ("Optionee") hereby elects to exercise Optionee's option to
purchase _________ shares of the Common Stock (the "SHARES") of Immusol, Inc.
(the "COMPANY") under and pursuant to the 1992 Stock Plan, as amended (the
"PLAN") and the [  ] Incentive [  ] Nonstatutory Stock Option Agreement dated
________, 19___ (the "Option Agreement").

         2.      Representations of Optionee.  Optionee acknowledges that
Optionee has received, read and understood the Plan and the Option Agreement
and agrees to abide by and be bound by their terms and conditions.

         3.      Rights as Shareholder.  Until the stock certificate evidencing
such Shares is issued (as evidenced by the appropriate entry on the books of
the Company or of a duly authorized transfer agent of the Company), 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
after the Option is exercised.  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 11 of the Plan.

                 Optionee shall enjoy rights as a shareholder until such time
as Optionee disposes of the Shares or the Company and/or its assignee(s)
exercises the Right of First Refusal hereunder.  Upon such exercise, Optionee
shall have no further rights as a holder of the Shares so purchased except the
right to receive payment for the Shares so purchased in accordance with the
provisions of this Agreement, and Optionee shall forthwith cause the
certificate(s) evidencing the Shares so purchased to be surrendered to the
Company for transfer or cancellation.

         4.      Company's Right of First Refusal.  Before any Shares held by
Optionee or any transferee (either being sometimes referred to herein as the
"HOLDER") may be sold or otherwise





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transferred (including transfer by gift or operation of law), the Company or
its assignee(s) shall have a right of first refusal to purchase the Shares on
the terms and conditions set forth in this Section (the "RIGHT OF FIRST
REFUSAL").

                 (a)      Notice of Proposed Transfer.  The Holder of the
Shares shall deliver to the Company a written notice (the "NOTICE") stating:
(i) the Holder's bona fide intention to sell or otherwise transfer such Shares;
(ii) the name of each proposed purchaser or other transferee ("PROPOSED
TRANSFEREE"); (iii) the number of Shares to be transferred to each Proposed
Transferee; and (iv) the bona fide cash price or other consideration for which
the Holder proposes to transfer the Shares (the "OFFERED PRICE"), and the
Holder shall offer the Shares at the Offered Price to the Company or its
assignee(s).

                 (b)      Exercise of Right of First Refusal.  At any time
within thirty (30) days after receipt of the Notice, the Company and/or its
assignee(s) may, by giving written notice to the Holder, elect to purchase all,
but not less than all, of the Shares proposed to be transferred to any one or
more of the Proposed Transferees, at the purchase price determined in
accordance with subsection (c) below.

                 (c)      Purchase Price.  The purchase price ("PURCHASE
PRICE") for the Shares purchased by the Company or its assignee(s) under this
Section shall be the Offered Price.  If the Offered Price includes
consideration other than cash, the cash equivalent value of the non-cash
consideration shall be determined by the Board of Directors of the Company in
good faith.

                 (d)      Payment.  Payment of the Purchase Price shall be
made, at the option of the Company or its assignee(s), in cash (by check), by
cancellation of all or a portion of any outstanding indebtedness of the Holder
to the Company (or, in the case of repurchase by an assignee, to the assignee),
or by any combination thereof within 30 days after receipt of the Notice or in
the manner and at the times set forth in the Notice.

                 (e)      Holder's Right to Transfer.  If all of the Shares
proposed in the Notice to be transferred to a given Proposed Transferee are not
purchased by the Company and/or its assignee(s) as provided in this Section,
then the Holder may sell or otherwise transfer such Shares to that Proposed
Transferee at the Offered Price or at a higher price, provided that such sale
or other transfer is consummated within 120 days after the date of the Notice
and provided further that any such sale or other transfer is effected in
accordance with any applicable securities laws and the Proposed Transferee
agrees in writing that the provisions of this Section shall continue to apply
to the Shares in the hands of such Proposed Transferee.  If the Shares
described in the Notice are not transferred to the Proposed Transferee within
such period, a new Notice shall be given to the Company, and the Company and/or
its assignees shall again be offered the Right of First Refusal before any
Shares held by the Holder may be sold or otherwise transferred.





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                 (f)      Exception for Certain Family Transfers.  Anything to
the contrary contained in this Section notwithstanding, the transfer of any or
all of the Shares during the Optionee's lifetime or on the Optionee's death by
will or intestacy to the Optionee's immediate family or a trust for the benefit
of the Optionee's immediate family shall be exempt from the provisions of this
Section. "IMMEDIATE FAMILY" as used herein shall mean spouse, lineal descendant
or antecedent, father, mother, brother or sister.  In such case, the transferee
or other recipient shall receive and hold the Shares so transferred subject to
the provisions of this Section, and there shall be no further transfer of such
Shares except in accordance with the terms of this Section.

                 (g)      Termination of Right of First Refusal.  The Right of
First Refusal shall terminate as to any Shares 90 days after the first sale of
Common Stock of the Company to the general public pursuant to a registration
statement filed with and declared effective by the Securities and Exchange
Commission under the Securities Act of 1933, as amended.

         5.      Tax Consultation.  Optionee understands that Optionee may
suffer adverse tax consequences as a result of Optionee's purchase or
disposition of the Shares.  Optionee represents that Optionee has consulted
with any tax consultants Optionee deems advisable in connection with the
purchase or disposition of the Shares and that Optionee is not relying on the
Company for any tax advice.

         6.      Restrictive Legends and Stop-Transfer Orders.

                 (a)      Legends.  Optionee understands and agrees that the
Company shall cause the legends set forth below or legends substantially
equivalent thereto, to be placed upon any certificate(s) evidencing ownership
of the Shares together with any other legends that may be required by state or
federal securities laws:

                 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
                 UNDER THE SECURITIES ACT OF 1933 (THE "ACT") AND MAY NOT BE
                 OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR
                 HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN
                 THE OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO
                 THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER,
                 PLEDGE OR HYPOTHECATION IS IN COMPLIANCE THEREWITH.

                 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
                 CERTAIN RESTRICTIONS ON TRANSFER AND RIGHT OF FIRST REFUSAL
                 OPTIONS HELD BY THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN
                 THE





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                 EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF
                 THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL
                 OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND RIGHT OF
                 FIRST REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES.

                 IT IS UNLAWFUL TO CONSUMMATE A SALE OR TRANSFER OF THIS
                 SECURITY, OR ANY INTEREST THEREIN, OR TO RECEIVE ANY
                 CONSIDERATION THEREFOR, WITHOUT THE PRIOR WRITTEN CONSENT OF
                 THE COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA,
                 EXCEPT AS PERMITTED IN THE COMMISSIONER'S RULES.

                 Optionee understands that transfer of the Shares may be
restricted by Section 260.141.11 of the Rules of the California Corporations
Commissioner, a copy of which is attached to Exhibit B, the Investment
Representation Statement.

                 (b)      Stop-Transfer Notices.  Optionee agrees that, in
order to ensure compliance with the restrictions referred to herein, the
Company may issue appropriate "stop transfer" instruc tions to its transfer
agent, if any, and that, if the Company  transfers its own securities, it may
make appropriate notations to the same effect in its own records.

                 (c)      Refusal to Transfer.  The Company shall not be
required (i) to transfer on its books any Shares that have been sold or
otherwise transferred in violation of any of the provisions of this Agreement
or (ii) to treat as owner of such Shares or to accord the right to vote or pay
dividends to any purchaser or other transferee to whom such Shares shall have
been so transferred.

         7.      Successors and Assigns.  The Company may assign any of its
rights under this Agreement to single or multiple assignees, and this Agreement
shall inure to the benefit of the successors and assigns of the Company.
Subject to the restrictions on transfer herein set forth, this Agreement shall
be binding upon Optionee and his or her heirs, executors, administrators,
successors and assigns.

         8.      Interpretation.  Any dispute regarding the interpretation of
this Agreement shall be submitted by Optionee or by the Company forthwith to
the Company's Board of Directors or the committee thereof that administers the
Plan, which shall review such dispute at its next regular meeting.  The
resolution of such a dispute by the Board or committee shall be final and
binding on the Company and on Optionee.

         9.      Governing Law; Severability.  This Agreement shall be governed
by and





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construed in accordance with the laws of the State of California excluding that
body of law pertaining to conflicts of law.  Should any provision of this
Agreement be determined by a court of law to be illegal or unenforceable, the
other provisions shall nevertheless remain effective and shall remain
enforceable.

         10.     Notices.  Any notice required or permitted hereunder shall be
given in writing and shall be deemed effectively given upon personal delivery
or upon deposit in the United States mail by certified mail, with postage and
fees prepaid, addressed to the other party at its address as shown below
beneath its signature, or to such other address as such party may designate in
writing from time to time to the other party.

         11.     Further Instruments.  The parties agree to execute such
further instruments and to take such further action as may be reasonably
necessary to carry out the purposes and intent of this Agreement.

         12.     Delivery of Payment.  Optionee herewith delivers to the
Company the full exercise price for the Shares.

         13.     Entire Agreement.  The Plan and Notice of Grant/Option
Agreement are incorporated herein by reference.  This Agreement, the Plan, the
Option Agreement and the Investment Representation Statement constitute the
entire agreement of the parties and supersede in their entirety all prior
undertakings and agreements of the Company and Optionee with respect to the
subject matter hereof, and is governed by California law except for that body
of law pertaining to conflict of laws.


Submitted by:                                Accepted by:

OPTIONEE:                                    Immusol, Inc.


                                             By:____________________________

                                             Its:___________________________

Name

Address:                                      Address:
                                                3050 Science Park Road
___________________________                     San Diego, CA 92121

___________________________





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                                   EXHIBIT B

                      INVESTMENT REPRESENTATION STATEMENT

OPTIONEE  :

COMPANY   :      IMMUSOL, INC.

SECURITY  :      COMMON STOCK

AMOUNT    :

DATE      :


In connection with the purchase of the above-listed Securities, the undersigned
Optionee represents to the Company the following:

                 (a)      Optionee is aware of the Company's business affairs
and financial condition and has acquired sufficient information about the
Company to reach an informed and knowledgeable decision to acquire the
Securities.  Optionee is acquiring these Securities for investment for
Optionee's own account only and not with a view to, or for resale in connection
with, any "distribution" thereof within the meaning of the Securities Act of
1933, as amended (the "Securities Act").

                 (b)      Optionee acknowledges and understands that the
Securities constitute "restricted securities" under the Securities Act and have
not been registered under the Securities Act in reliance upon a specific
exemption therefrom, which exemption depends upon, among other things, the bona
fide nature of Optionee's investment intent as expressed herein.  In this
connection, Optionee understands that, in the view of the Securities and
Exchange Commission, the statutory basis for such exemption may be unavailable
if Optionee's representation was predicated solely upon a present intention to
hold these Securities for the minimum capital gains period specified under tax
statutes, for a deferred sale, for or until an increase or decrease in the
market price of the Securities, or for a period of one year or any other fixed
period in the future.  Optionee further understands that the Securities must be
held indefinitely unless they are subsequently registered under the Securities
Act or an exemption from such registration is available.  Optionee further
acknowledges and understands that the Company is under no obligation to
register the Securities.  Optionee understands that the certificate evidencing
the Securities will be imprinted with a legend which prohibits the transfer of
the Securities unless they are registered or such registration is not required
in the opinion of counsel satisfactory to the Company, a legend prohibiting
their transfer without the consent of the Commissioner of





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   14
Corporations of the State of California and any other legend required under
applicable state securities laws.

                 (c)      Optionee is familiar with the provisions of Rule 701
and Rule 144, each promulgated under the Securities Act, which, in substance,
permit limited public resale of "restricted securities" acquired, directly or
indirectly from the issuer thereof, in a non-public offering subject to the
satisfaction of certain conditions.  Rule 701 provides that if the issuer
qualifies under Rule 701 at the time of the grant of the Option to the
Optionee, the exercise will be exempt from registration under the Securities
Act.  In the event the Company becomes subject to the reporting requirements of
Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days
thereafter (or such longer period as any market stand-off agreement may
require) the Securities exempt under Rule 701 may be resold, subject to the
satisfaction of certain of the conditions specified by Rule 144, including: (1)
the resale being made through a broker in an unsolicited "broker's transaction"
or in transactions directly with a market maker (as said term is defined under
the Securities Exchange Act of 1934); and, in the case of an affiliate, (2) the
availability of certain public information about the Company, (3) the amount of
Securities being sold during any three month period not exceeding the
limitations specified in Rule 144(e), and (4) the timely filing of a Form 144,
if applicable.

         In the event that the Company does not qualify under Rule 701 at the
time of grant of the Option, then the Securities may be resold in certain
limited circumstances subject to the provisions of Rule 144, which requires the
resale to occur not less than two years after the later of the date the
Securities were sold by the Company or the date the Securities were sold by an
affiliate of the Company, within the meaning of Rule 144; and, in the case of
acquisition of the Securities by an affiliate, or by a non-affiliate who
subsequently holds the Securities less than three years, the satisfaction of
the conditions set forth in sections (1), (2), (3) and (4) of the paragraph
immediately above.

                 (d)  Optionee hereby agrees that if so requested by the
Company or any representative of the underwriters in connection with any
registration of the offering of any securities of the Company under the
Securities Act, Optionee shall not sell or otherwise transfer any Shares or
other securities of the Company during the 180-day period following the
effective date of a registration statement of the Company filed under the
Securities Act; provided, however, that such restriction shall only apply to
the first registration statement of the Company to become effective under the
Securities Act which include securities to be sold on behalf of the Company to
the public in an underwritten public offering under the Securities Act.  The
Company may impose stop-transfer instructions with respect to securities
subject to the foregoing restrictions until the end of such 180-day period.

                 (e)      Optionee further understands that in the event all of
the applicable requirements of Rule 701 or 144 are not satisfied, registration
under the Securities Act, compliance with Regulation A, or some other
registration exemption will be required; and that, notwithstanding the fact
that Rules 144 and 701 are not exclusive, the Staff of the Securities





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   15
and Exchange Commission has expressed its opinion that persons proposing to
sell private placement securities other than in a registered offering and
otherwise than pursuant to Rules 144 or 701 will have a substantial burden of
proof in establishing that an exemption from registration is available for such
offers or sales, and that such persons and their respective brokers who
participate in such transactions do so at their own risk.  Optionee understands
that no assurances can be given that any such other registration exemption will
be available in such event.

                 (f)      Optionee understands that the certificate evidencing
the Securities will be imprinted with a legend which prohibits the transfer of
the Securities without the consent of the Commissioner of Corporations of
California.  Optionee has read the applicable Commissioner's Rules with respect
to such restriction, a copy of which is attached.

                                       Signature of Optionee:

                                       ___________________________
                                       Optionee

                                       Date:________________, 19__





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   16
                                  ATTACHMENT 1
              STATE OF CALIFORNIA - CALIFORNIA ADMINISTRATIVE CODE
        Title 10.  Investment - Chapter 3.  Commissioner of Corporations

  260.141.11:  Restriction on Transfer.  (a)  The issuer of any security upon
which a restriction on transfer has been imposed pursuant to Sections
260.102.6, 260.141.10 or 260.534 shall cause a copy of this section to be
delivered to each issuee or transferee of such security at the time the
certificate evidencing the security is delivered to the issuee or transferee.

  (b)  It is unlawful for the holder of any such security to consummate a sale
or transfer of such security, or any interest therein, without the prior
written consent of the Commissioner (until this condition is removed pursuant
to Section 260.141.12 of these rules), except:

       (1)  to the issuer;
       (2)  pursuant to the order or process of any court;
       (3)  to any person described in Subdivision (i) of Section 25102 of the
            Code or Section 260.105.14 of these rules; 
       (4)  to the transferror's ancestors, descendants or spouse, or any
            custodian or trustee for the account of the transferrer or the
            transferror's ancestors, descendants, or spouse; or to a transferee
            by a trustee or custodian for the account of the transferee or the
            transferee's ancestors, descendants or spouse;
       (5)  to holders of securities of the same class of the same issuer;
       (6)  by way of gift or donation inter vivos or on death;
       (7)  by or through a broker-dealer licensed under the Code (either
            acting as such or as a finder) to a resident of a foreign state,
            territory or country who is neither domiciled in this state to the
            knowledge of the broker-dealer, nor actually present in this state
            if the sale of such securities is not in violation of any
            securities law of the foreign state, territory or country
            concerned;
       (8)  to a broker-dealer licensed under the Code in a principal
            transaction, or as an underwriter or member of an underwriting
            syndicate or selling group;
       (9)  if the interest sold or transferred is a pledge or other lien given
            by the purchaser to the seller upon a sale of the security for
            which the Commissioner's written consent is obtained or under this
            rule not required;
      (10)  by way of a sale qualified under Sections 25111, 25112, 25113 or
            25121 of the Code, of the securities to be transferred, provided
            that no order under Section 25140 or subdivision (a) of Section
            25143 is in effect with respect to such qualification;
      (11)  by a corporation to a wholly owned subsidiary of such corporation,
            or by a wholly owned subsidiary of a corporation to such
            corporation;
      (12)  by way of an exchange qualified under Section 25111, 25112 or 25113
            of the Code, provided that no order under Section 25140 or
            subdivision (a) of Section 25143 is in effect with respect to such
            qualification;
      (13)  between residents of foreign states, territories or countries who
            are neither domiciled nor actually present in this state; 
      (14)  to the State Controller pursuant to the Unclaimed Property Law or 
            to the administrator of the unclaimed property law of another 
            state; or
      (15)  by the State Controller pursuant to the Unclaimed Property Law or
            by the administrator of the unclaimed property law of another state
            if, in either such case, such person (i) discloses to potential
            purchasers at the sale that transfer of the securities is
            restricted under this rule, (ii) delivers to each purchaser a copy
            of this rule, and (iii) advises the Commissioner of the name of
            each purchaser;
      (16)  by a trustee to a successor trustee when such transfer does not
            involve a change in the beneficial ownership of the securities; 
      (17)  by way of an offer and sale of outstanding securities in an issuer
            transaction that is subject to the qualification requirement of 
            Section 25110 of the Code but exempt from that qualification
            requirement by subdivision (f) of Section 25102;

provided that any such transfer is on the condition that any certificate
evidencing the security issued to such transferee shall contain the legend
required by this section.

  (c)  The certificates representing all such securities subject to such a
restriction on transfer, whether upon initial issuance or upon any transfer
thereof, shall bear on their face a legend, prominently stamped or printed
thereon in capital letters of not less than 10-point size, reading as follows:

       "IT IS UNLAWFUL TO CONSUMMATE A SALE OR TRANSFER OF THIS SECURITY, OR
       ANY INTEREST THEREIN, OR TO RECEIVE ANY CONSIDERATION THEREFOR, WITHOUT
       THE PRIOR WRITTEN CONSENT OF THE COMMISSIONER OF CORPORATIONS OF THE
       STATE OF CALIFORNIA, EXCEPT AS PERMITTED IN THE COMMISSIONER'S RULES."





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