2 May 1953 Dr. Ethel MoNeil Dept of Animal Pathology & Hygiene University of Tllinois College of Veterinary Medicine Urbana, Dllinois Dear Dr. iicNeil: I am enclosing a letter I received from Dr. Lederberg together with my reply. You will note that he is asking for some of the strains of S, pullorum which we found to be maltose-~positive variants. I hope that you do have some of these which you can send to him. You will note also that I am sending the reprint, which I believe is by Taylor and myself, for which he asked. If you have others in which you think he might be interested and have not sent them on to him, you might send them also. Beat wishes—- Sincerely yours, ob be As WRH/a1h WILLIAM R. HINSHAW Chief, Wi Division Cml C Biological Laboratories