THE ROCKEFELLER UNIVERSITY 1230 YORK AVENUE NEW YORK, NY 10021 November 19, 1979 JOSHUA LEDERBERG PRESIDENT The Honorable Alan Cranston United States Senate 229 Russell Office Building Washington, D. C. 20510 Dear Alan: I just wanted to express my appreciation for your talk at the Lasker Awards Luncheon. It was certainly the most perceptive, sensitive and eloquent statement of our most important "biological" challenge that I have heard to date. There was not a single remark in it that was wasted, nor one that I could do other than applaud. Yours, sincerely, i \ Jo a Lederberg ey Encl. Ru Brrr hie