FEDERAL SECURITY AGENCY PUBLIC HEALTH SERVICE WASHINGTON 25, D.C. IN REPLYING, ADDRESS THE PUBLIC HEALTH SERVICE REFER TO: Toe. Research Laboratory, 411 East 69th St., New York 21, N. Y. May 9, 1950, Dr. Joshua Lederberg, Dera rtment of Genetics, The University of Wisconsin, College of Agriculture, Madison 6, Wisconsin. Dear Joshua: Enclosed is the translation. My Russian is so rusty that I am not in a good position to criticize the language, but I couldn't help feeling that Mr. Lebedev'ts style was practically as unpleasant as his genetics. What would you think of sending the last paragraph to Science, with very little explanatory comment? I would be glad to do it and it might be easier for me to make the comments about your work which would be necessary in order to refute the last sentence. Sincerely, Bernard D. Davis BDD/h1 ence SB LEBEDEV [44S PRIRODA # S TFo- Ti