16.12.54 Dear Dr. Lederberg, I am interested in attempting transduction and recombination experiments on the pathogenic varieties of E. coli, and I should be most grateful for any reprints of your articles which are still available. I wonder if you could also give me some information about a "Microbial Genetics Bulletin" which is published in America. I am just going back to Australia after a visit to England, where I talked with Drs. W. Hayes, Rowley, and Stocker on this subject. Yours sincerely, (Dr) A.K. Garven (Bacteriologist)