SOCIETY OF AMERICAN BACTERIOLOGISTS OFFICE OF THE PRESIDENT PERRY W. WILSON DEPARTMENT OF BACTERIOLOGY UNIVERSITY OF WISCONSIN MADISON 6, WISCONSIN dune hy 1957 Dr. Joshua Lederberg Professor of Medical Genetics 200 Genetics Building University of Wisconsin Madison 6, Wisconsin Dear Dr. Lederberg: Please accept my belated congratulations on your election to the National Academy of Science, These elections occurred the week before the annual meeting of the Society of American Bacteriologists in Detroit, and in my preparations for attending the meeting, I did not have a chance to write you of my pleasure in hearing of your election. I have now received the official notice from the Academy regarding the election and will take this opportunity and reminder to voice my sincere congratulations for the honor in your election. Sincerely, a" r wen P. W. Wilson PWemm