more detailed description of the the research andtheresults. It is apparent that Hamilton was covering up his later human subject experiments with plutonium. He and Dr. Stone were considering and already planning future tracer experiments with humans. There is a bibliography of reports written by members of project 48-A-1, as well as a list of students who worked on the project. (copied andfiled in the Hamilton folder) Pro: and Budget Estimate for 1948-49/Health and Biology Project/NDP 48C by Robert S. Stone, M.D. in Charge. There is a concise history of the project, which originally involved observing changes in blood counts of patients exposed to whole body X-rays; the history includes dates the researchers started using radioactive materials such as radiophosphorus. There is a list of reports which were submitted anda list of general conclusions. The Activities of the Division of Medical Physics on Atomic Energy Supported Work Through February 1948; includes an outline and further description of the major fields of research endeavours. One ofthe fields was the biological effects of irradiation, done jointly with the Health Physics Division. Proposal for continuation of studies on the distribution of gases, water and electrolytes in the human body, by Nello Pace, Project Supervisor. Studies were conducted on humansand included the use of radioisotopes, both by injection or by inhalation, in normal andill subjects. The radioisotopes included sulfur,tritium, phosphorus, sodium, and calcium. Tissues studied included the heart, liver, lung, thigh muscle, and ankle bone. A list of participants includesPace, San Souci, Lawrence, Jones, Siri, and others. It is possible, but I could be wrong,that the normal subjects used for this were the prisoners stated above. The project was originally called "carbon monoxide physiology”. Projects (under way in the Donner Lab). A list of 12 projects is followed by a description of each with goals and results where applicable. They include the following studies involving human subjects: studies with carbon 14 labeled stilbamidine, liver flow in leukemia, iron metabolism in hyperplastic and aplastic conditions of the bone marrow, blood volume measurements in leukemia, polycythemia, and cancer, carbon 14 labeled glycine studies and the life of the red cell in normal and neoplastic animals and patients, and others. In addition to these records, there were others of a more general nature which seemed relevant. For example, there is correspondence pertaining to policy on human subjects, including copies of release forms used by the Donner Metabolic Unit. Lawrence was also working to establish a petty cash fund for studies on selected humans (1952-3), so that he could undertake blood studies without constantly seeking reimbursement. I also found correspondence from the AEC in which requests for uses of materials, including radioactive isotopes, were approved for use in human subjects; or correspondence in which requests were approved as long as no humans were used (someof these are addressed to Hamilton). Lawrence Berkeley Laboratory Archives and Records Office Human Radiation Experiments Search and Retrieval Project Anna Berge Research Notes Electronic DocumentTitle: DC Files April 4, 1994 2

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