W. H. FREEMAN AND COMPANY ei PUBLISHERS 660 MARKET STREET, SAN FRANCISCO 4, CALIFORNIA ยป TELEPHONE: YUKON 6-5115 May 7, 1958 Dr. Joshua Lederberg Genetics Building The University of Wisconsin Madison 6, Wisconsin Dear Joshua: A word to put in print my statement that we would indeed be interested in a good introduction to medical genetics. If and when the three of you actually move toward the preparation of such a manuscript, I will count on you to have the postman ring my doorbell with the news, Just as important, I repeat that I hope that the near future provides an opportunity for all of us to get together in the Bay area--indeed, at our home. It would be a great pleasure to have Esther and you with us when you are not under the pressure of catching a plane. Until then, my best to both of you and Dr. Cavalli. Cordially yours, WHF :mc