EXHIBIT 10.8 January 5, 1998 Dr. Ralph W.F. Hardy PO Box 509 Clarence Center, NY 14032 Dear Dr. Hardy: By this letter agreement, BioTechnica would like to amend your Consulting Agreement dated November 27, 1996, as follows: 2. Term; Payment Upon...

                                                           EXHIBIT 10.8

January 5, 1998



Xx. Xxxxx X.X. Xxxxx
XX Xxx 000
Xxxxxxxx Xxxxxx, XX  00000

Dear Xx. Xxxxx:

By this letter agreement, BioTechnica would like to amend your Consulting 
Agreement dated November 27, 1996, as follows:

2.  Term; Payment Upon Termination

(a)  The term of this Agreement shall commence on January 1, 1998, and shall 
terminate on the earlier of the death of the Consultant or on December 31, 
1998 (the "Expiration Date").

If the provisions of this letter are in accordance with your understanding, 
please sign and return one of the enclosed copies.

Very truly yours,



/s/ Xxxxx Xxxxxxx
President 



/s/ Xxxxx X.X. Xxxxx                      January 5, 1998
Xxxxx X.X. Xxxxx                          Date