NEW YORK STATE COLLEGE OF AGRICULTURE CORNELL UNIVERSITY ITHACA, NEW YORK LABORATORY OF BACTERIOLOGY December 7, 1948 Dre Joshua Lederberg Genetics Department University of Wisconsin Madison 6, Wisconsin Dear Josh: I discover I was very optimistic in my estimate as to when the new labs would be available; they are not finished yet, and probably won't be for at least a couple weeks, Hence, it would appear that I cannot hope to accomplish much until after the first of the year. I am sorry to keep postponing it as I have, but I have no alternative. I will let you know at the earliest possible moment when I can start handling the cultures. Very truly yours, de. Me 2. Zelle MRZ sje