November 21, 1956 Air Mail Dr, Boris Rotman Instituto de Quimica Fislologica Universidad de Chile Borgono 1470 Santiago, Chile Dear Boris: I have been thinking over your predicament, and also discussed Sith Hank Lardy. We are both agreed that the only practical procedure would be for you to write yourself, to a number of people who might be interested, I gave you a list of possible names in my last letter and I am sure you will be able to think of others, However, since Bernie Davis scems to be one of the best bete as a person whose interest coincide with yours, I have written to him myself though it would do you no harm to write as well, Although we would both be very happy to give you the highest recommendation for this purpose, Joris, we are unable to negotiate with a perspective employer for the simple reason that we do not know enough of the details of your plans, what you would be interested in ete, For that reason you should communicate directly, Youcan, of course, freely use our names for references as well, I am very sure that you would By airriculty in finding a position if not by mail then within a short time of your actual arrival.in New York, Let me mention further that Ed Tatum will be coming to the Rockefeller Institute about January 1 and he is someone you might also wish to be associated with, Please be sure that we are and stand ready to do anything possible in your behalf, . With best wishes. Yours sincerely, Josima Lederberg Professor of Genetics