RUTGERS UNIVERSITY The State University of New Jersey NEW JERSEY AGRICULTURAL EXPERIMENT STATION DEPARTMENT OF MICROBIOLOGY NICHOL AVENUE NEW BRUNSWICK NEW JERSEY April 17, 1953 Dr. Joshua Lederberg University of Wisconsin Dept. of Genetics Madison 6, Wisconsin Dear Dr. Lederberg: I have been waiting to hear from you when you are able to come down to New Brunswick in order to address our seminar. I recall your letter of last fall promising to come down this way early this spring. Do you have any idea whether your plans are going to materialize? With best wishes, I am Cordially yours, Seb en a Mater yt, Chairman, Microbiology Dept. SAW: VAC