FEDERAL SECURITY AGENCY © Public Health Service NATIONAL INSTITUTES OF HEALTH © Bethesda 14, Md. EXPERIMENTAL BIOLOGY AND MEDICINE INSTITUTE . May 35 1951 MICROBIOLOGICAL INSTITUTE NATIONAL CANCER INSTITUTE NATIONAL HEART INSTITUTE NATIONAL INSTITUTE OF DENTAL RESEARCH NATIONAL INSTITUTE OF MENTAL HEALTH THE CLINICAL CENTER DIVISION OF RESEARCH GRANTS AND FELLOWSHIPS Dr. Joshua Lederberg University of “Wisconsin College of Agriculture Madison 6, Wisconsin Dear Dr. Lederbergs I will, of course, be happy to see you when you arrive here about June 3rd or lth. There is still a possibility that I may be able to attend the SAB meetings, but in any case, hope you will have time to visit our laboratories here. With kind regards, Respectfully , / Oy po = ie, Chied oxpenien tee! Therapeutics National Microbiological Institute