W. HL fauna AND COMPANY ff PUBLISHERS _ 660 MAR SEREET, SAN FRANCISCO 4, CALIFORNIA ยข TELEPHONE: YUKON 6-5115 April 7, 1959 Dr. Joshua Lederberg Hansen Laboratories Stanford University Stanford, California Dear Dr. Lederberg: Enclosed is a copy of a letter that Mr. Freeman has just written to Drs. Beadle and Tatum regarding your recent talk. Mr. Freeman thought you might be interested in reading the letter. Separately we are sending you some of our books. COMPARATIVE MORPHOLOGY OF VASCULAR PLANTS by Foster and Gifford is our most recent publication. Sincerely yours, Secretary rja/ Enclosure