National Institutes of Health, Office of Procurement Management, 6011 Executive Blvd., Rockville, Maryland 20892-7260

65 -- EXERCISE OPTION UNDER EXISTING CONTRACT TO FURNISH THE NATIONAL INSTITUTES OF HEALTH WITH LABORATORY ANIMAL FEED, PURINA BRAND, FOR THE PERIOD DECEMBER 1, 1999 THROUGH NOVEMBER 30, 2000. POC Catherine Hiltner, Contracting Officer, 301/402-3063 CNT Modification No. 1, Contract No. 263-99-D-0003 AMT $152,306 DTD 101399 TO Quality Lab Products, 6660 Santa Barbara Road, #19, Elkridge, MD 21075 Posted 10/13/99 (W-SN391210). (0286)

Loren Data Corp. http://www.ld.com (SYN# 0374 19991015\65-0001.AWD)