Document vBBwzDreLjeMoGvm8mK0mDdqR

February 25, 1969 Dr. Keplinger Industrial biotest Laboratories, 1810 Frontage Road Northbrook, Illinois 60062 Inc. Dear Dr. Keplingert Confirming our telephone conversation (2-25-69), please make sure that feather samples from both tho control chickens and the ones fed Aroclor, Hnlovax, DDT, and Toxnphene are included with tissue samples from the chicken feeding studies. p{f Best regards. Sincerely, db cc: R. E. Keller V'. R. Richard E. Wheeler E. Scott Tucker Applied Sciences Section DSW 034374 *1 STLCOPCB4018201