ISTITUTO SUPERIORE DI! SANITA ROMA VIALE REGINA ELENA, 299 Prof.d. Lederberg Genetics Building “he University of Wisconsin Madison, 6, Wisconsin, U.S.A, Dear Lederberg I have taken the resolution to join Bradley, and I have already written in this sense to him and also to David Bonner. To Bonner I wrote that%plasmic inheritance and biochemical genetics have become more and more exstran~ eous to the lines of my work ana that several persons have suggested to me to intensify my researches: onthe Streptomyces genetics, etc.,etc. In particular I have mentioned you as the person who has suggested to me to join Bradley. If you will de so kind to write a letter to Bonner, or explain the Situation to him, when you will meet him in mid-Apri2i, I will be grateful to you. Prof, Chain agreed with my decision (and I must say that I was very surprised) but I don't yet know whether I will be able to prolong my stay with Bradley for a period longer than three months, “nyway Bonner, besides effering to mé a guarantee of $ 1,000 for three months, has applied to the Public Health . Service for funds to support me in the U.S.A, for one year, I have written to him to know whether such funds (which he was sure that will be obtained) would be utilisable in a different laboratory from that mentioned in the appli- cation. I hope that Bonner will understand the situation, and | wish to thank you for this new onportunity that actually seems to me much more convenient. With all best whishes, and regards to Esther “incerely Gop Leanne (G. Sermonti) Roma, 26, 2.1958