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                                                                  EXHIBIT 10.27


                          BIOANALYTICAL SYSTEMS, INC.

                1997 EMPLOYEE INCENTIVE STOCK OPTION AGREEMENT


         THIS AGREEMENT, made this ____ day of ______________, _____, by and
between Bioanalytical Systems, Inc., an Indiana corporation with its principal
office at 2701 Kent Avenue, West Lafayette, Indiana (hereinafter called
"Company"), and_________________________, residing at__________________________
(hereinafter called the "Grantee"), pursuant to the terms, conditions and 
limitations contained in the Company's 1997 Employee Incentive Stock Option Plan
(hereinafter called the "Plan"), a copy of which is attached hereto as Exhibit
A.

                              WITNESSETH THAT:

        WHEREAS, in the interests of affording an incentive to the Grantee to
give his best efforts to the Company as a key employee, the Company wishes to
provide that the Grantee shall have an option to buy Common Shares of the
Company: 

        NOW, THEREFORE, it is hereby mutually agreed as follows: 

        1.       The Company hereby grants to the Grantee the right and option
to purchase, on the terms and conditions hereinafter set forth, all or any part
of an aggregate of __________shares (hereinafter called "Subject Shares") of
the presently authorized, but unissued, or treasury, Common Shares of the
Company (hereinafter called the "Common Shares"), at a purchase price of
$______ per share, exercisable in whole or in part from time to time subject to
the limitation that no option may be exercised with respect to fewer than
twenty-five (25) shares unless there are fewer than twenty-five (25) shares
then subject to option hereunder, in which event any exercise must be as to all
such shares and subject to the further limitation that the options represented
by this Agreement



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shall be exercisable in four equal installments as set forth in Section 6(e) of
the Plan.  The option shall expire as to all shares subject to purchase
hereunder on the ______ anniversary date of this Agreement if not exercised on
or before such date.
         2.      Subject to the limitation specified in Section 1 hereof and in
Section 6(e) of the Plan, the Grantee may from time to time exercise this
option by delivering a written notice of exercise and subscription agreement to
the Secretary of the Company specifying the number of whole shares to be
purchased, accompanied by payment (i) in cash, (ii) by certified check or bank
cashier's check, (iii) through the tender to the Company of Common Shares of
the Company owned by the optionee or by withholding of Common Shares of the
Company that are subject to the option, which Common Shares shall be valued,
for purposes of determining the extent to which the purchase price has been
paid, at their fair market value on the date of exercise as determined in
Section 6(c) of the Plan; or (iv) by a combination of the methods described in
(i), (ii), or (iii).  The Company may, in its sole discretion, refuse to
withhold Common Shares of the Company as payment of the exercise price of the
option.  Such exercise shall be effective upon receipt by the Secretary of such
written notice, subscription agreement and payment of the purchase price.  Only
the Grantee may exercise the option during the lifetime of the Grantee.  No
fractional shares may be purchased at any time hereunder.
         3.      Upon the effective exercise of the option, or any part
thereof, certificates representing the shares so purchased, marked fully paid
and non-assessable, shall be delivered to the person who exercised the option,
except as provided in Section 6(j) of the Plan.  Until certificates
representing such shares shall have been issued and delivered, the Grantee
shall not have any of the rights or privileges of a shareholder of the Company
in respect of any of such shares.




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         4.      In the event that, prior to the delivery by the Company of all
the Subject Shares, there shall be an increase or reduction in the number of
Common Shares of the Company issued and outstanding by reason of any
subdivision or consolidation of Common Shares or any other capital adjustment,
the number of shares then subject to this option shall be increased or
decreased as provided in Section 6(g) of the Plan.
         5.      The option and the rights and privileges conferred by this
Option Agreement shall not be assigned or transferred by the Grantee in any
manner except by will or under the laws of descent and distribution.  In the
event of any attempted assignment or transfer in violation of this Section 5,
the option, rights and privileges conferred by this Option Agreement shall
become null and void.
         6.      Nothing herein contained shall be deemed to create any
limitation or restriction upon such rights as the Company would otherwise have
to terminate a person as an employee of the Company.
         7.      The option, rights and privileges herein conferred are granted
subject to the terms and conditions set forth herein and in the Plan.
         8.      Any notices to be given or served under the terms of this
Option Agreement shall be addressed to the Secretary of the Company at 2701
Kent Avenue, West Lafayette, Indiana, and to the Grantee at the address set
forth on page one of this Option Agreement, or such other address or addresses
as either party may hereafter designate in writing to the other.  Any such
notice shall be deemed to have been duly given or served, if and when enclosed
in a properly sealed envelope or wrapper addressed as aforesaid, postage
prepaid, and deposited in the United States mail.



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         9.      The interpretation by the Incentive Stock Option Committee,
appointed by the Company's Board of Directors, of any provisions of the Plan or
of this Option Agreement shall be final and binding on the Grantee unless
otherwise determined by the Company's Board of Directors.

         10.     This Option Agreement shall be governed by the laws of the
State of Indiana.
         IN WITNESS WHEREOF, the Company and the Grantee have signed this
Option Agreement as of the day and year first above written.

                                        "COMPANY"

                                        BIOANALYTICAL SYSTEMS, INC.


                                        By:
                                            -----------------------------

ATTEST:

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



                                        "GRANTEE"


                                        By:
                                            -----------------------------




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