JOURNAL OF BACTERIOLOGY OFFICIAL ORGAN OF THE SOCIETY OF AMERICAN BACTERIOLOGISTS Editor-in-Chief Editorial Office JAMES M. SHERMAN Cornell University Press Cornell University July 13 > 1950 Ithaca, New York Dr. Joshua Lederberg Department of Bacteriology University of California Berkeley, California Dear Doctor Lederberg: Your paper has been accepted and is being scheduled for the October issue of the Journal, The publishers are being instructed to send the proof to Berkeley, and I trust that there will be no slip in their machinery. However, during the summer months, when so many other people are on vacation as well as university professors, slips do occur. You should therefore advise someone in your department at Madison to be on the lockout in case the proof should be sent there. With best wishes for a pleasant stay in California, Sincerely yours ~~ Hi items ( Je M. Sherman JMS :rh