W. H. FREEMAN AND COMPANY fi PUBLISHERS 549 MARKET STREET, SAN FRANCISCO 5, CALIFORNIA +« TELEPHONE: YUKON 6-5115 February 29, 1956 Dr. Joshua Lederberg Department of Genetics College of Agriculture The University of Wisconsin Madison 6, Wisconsin Dear Joshua: Thanks for your "Nihil obstat" on the statement about GENETICS AND CHEMOTHERAPY. I am sure that you by now have a copy of my reply to Carter. Dammit, I want to do such works, but this one is a terribly complex question from the standpoint of finances, as my letter to Carter will have explained to you. Sincerely yours, JB WHF :mc