NATIONAL ACADEMY OF SCIENCES DAVID R. GODDARD SECTION OF BOTANY BOTANICAL LABORATORY UNIVERSITY OF PENNSYLVANIA PHILADELPHIA 4, PENNSYLVANIA April 25, 1957 Dr. Joshua Lederberg Department of Genetics University of Wisconsin Madison, Wisconsin Dear Josh: May I send the official greetings of the Botany Section of the Academy on your election and invite you to affiliate with the Botany Section (which includes general microbielogy), It was the Botany Section that nominated you to the Academy, but with warm and strong support from your many friends in the Zoology Section, You have freedom of choice in joining a section -- but you may be a member of only one, May I add my personal congratulations and tell you how happy I am at this recognition, Sincerely yours, DPD o—~—___, David R, Goddard DRG/mm