ATTACHMENT 3 Letter from Gordon M. Dunning, Health Physicist with AEC's Division of Biology and Medicine, to Thomas Shipman, July 16, 1954. Advisory Committee No. DOE-020795-D-4, (1 p). UNITED STATES ATOMIC ENERGY COMMISSION WASHINGTON 25, D.C. IN REPLY REFER TO: BMBP:GMD July 16, 1954 Dr. Thomas Shipman H- Division Los Alamos Scientific Laboratory Los Alamos, New Mexico Dear Tom: We recently have had occasion to refer again to the LASL-No. 1440 document, "Further Study of Hematological Changes in Humans Chronically Exposed to Low Level Gamma Radiation" by Carter. The purpose of writing you is to inquire as to your present state of thinking on this subject. Has there been any additional information that might have a bearing either on the material as presented in the report or on an extension of the data? It was good to see Payne here this week for the meeting, but we missed having you suffer the Washington heat with us. Cordially, Gordon M. Dunning Health Physicist Biophysics Branch Division of Biology and Medicine REPOSITORY LANL/RC COLLECTION TR-6704 BOX NO. 236 FOLDER 18