BAYLOR UNIVERSITY COLLEGE OF MEDICINE TEXAS MEDICAL CENTER HOUSTON, TEXAS CORA AND WEBB MADING DEPARTMENT OF SURGERY DIVISION OF EXPERIMENTAL BIOLOGY May 22, 1961 Dr. Joshua Lederberg Department of Genetics Stanford University Medical Center Palo Alto, California Dear Dr. Lederberg: It was a privilege and a pleasure to visit your department last week, to meet with you and your many fine associates, both formally and socially, and to discuss matters of mutual interest. I wish to express my sincere gratitude to you and Mrs. Lederberg for your kindness and hospitality on that occasion. Sincerely yours, Pra de Jo#r/J. Trentin, Ph.D., Professor of Experimental Biology and Anatomy Head, Division of Experimental Biology ij WM UMAOL ‘ri D>