Document oY0O7Na5NKqDJp322oe77vkr

July 18, 1953 Dr. R. W. Sehiessler, Director API Research Project 1)2 The Pennsylvania State College . School of Chemistry and.Physics State College,Pennsylvania -' Dear Doctor Schiessler: The samples referred to in your phone call and letter of July 13 have been received in good order. They will be tested for acceleration of carcinogenesis. We appreciate the value of these samples and will carefully evaluate the results before considering further selection of samples. . Thank you very much for your generous cooperation with our program. Sincerely yours. RCPtmjg Ruth C. Plerle, Ph.D. Senior Research Associate \' ` ' *. t * * - .I .t '' . * SC-API-2450