Career at the University of Rochester, 1934-1940, 1946, with emphasis on the Rochester cyclotron. The cyclotron's funding is covered in particular detail, with the aid of documents from the E. O. Lawrence Papers (Bancroft Library, Berkeley, CA). Comments on the Rochester Physics Department and its relations with other institutions, and on biophysical and medical research. Also prominently mentioned are: Hans Albrecht Bethe, Stafford Warren, H. Russell Wilkins; Bell Telephone Laboratories, National Research Council (U.S.) Committee on Mytogenic Radiation, University of California at Berkeley, School of Medicine and Dentistry of University of Rochester, and Washington University.