Hel El W.H. FREEMAN AND COMPANY Publishers 549 MARKET STREET SAN FRANCISCO 5, CALIFORNIA YUKON 6-5115 September 23, 1952 Dr. Joshua Lederberg Department of Genetics University of Wisconsin Madison 7, Wisconsin Dear Dr. Lederberg: I am planning on a visit with you in Madison either Thursday, October 30, or Monday, November 3. If your present plans call for you to be away either of those two dates, please let me know so I can be sure to get to Madison on the other! Please remember me to Mrs. Lederberg. Sincerely yours, Ll OT Price eve W. H. Freeman WHF: eh