JFFICIAL USE ONL ~ USSR has been more conservative. In the area of bone marrow transplantation the reverse situation currently exists, Some general impressions of the non-scientific sessions and Moscow were also briefly presented, Pu-Registry. Dr. Bruner informed the ACBM that a contract has been negotiated with the Hanford Environmental Health Foundation to develop the Plutonium Registry. The origin and development of the Registry was reviewed as well as plans for its operation, Dr. Bruner advised the ACBM that they will be intormed from time to time about the effects of plutonium and other transuranic elements on man as obtained by this prespective epidemiological study of in-plant accident cases reported by licensees and contractors. PalmonaryToxicolosy, Dr. Brumer noted that the inhalation of plutonium aerosols, generated ty. weapon accidents or space nuclear aborts or by explosive accidents during plutonium processing constitutes a major health threat to nuclear erergy workers and/or the population as well as being a potential restriction to the development of reactors using plutonium in their fuels. Since knowledge of the pulmonary radiotoxicology of this metal is becoming so important to these several areas of nuclear energy, plans are being developed for one or more large chronic animal experiments designed to permit a more precise evaluation of the long-term hazards of inhalation of fine aerosols of Pud, « HumanRadiobiology. Dr. Burr reiterated for the committee the events that had taken place since Dr. Robley Evans’ proposal for a Center on Human Radiobiology had been received by the DBM in December 1967, In particular, he discussed what steps had been taken since the last ACBM meeting to move toward relocation of the radium and mesothorium studies of Dr, Evans, He noted that he and Dr. Totter had spent one morning in discussions in Chicago with Dr. Moseley and Dr. Hasterlik and the afternoon with Drs. Rowland, Duffield and Finkel. There had also been conversations with the staff in the Medical Department at Brookhaven. Proposals tor the continuation of the radium studies had been requested from both BNL and ANL In a letter to Senator Pastore, the Division had gone on record as indicating that it would select a laboratory for this study by October 31, 1968, and anticipated that some material and records might be transferred after january 1, 1969, from MIT to the new site. For FY 69 Dr. Evans’ program should remain very active particularly in the area of ingtrumentation for the uranium mine problem and during FY 70 it is anticipated that during the 12 months his program will be phased out. New Studies Relating to the Uranium Mine Problem. Dr. Burr outlined for the ACBM the general reorgamization within the Department of Health, Education and Welrare relatiny to the Public Health Service. He noted that tne two groups had been given responsibility in the uranium mine area, These are OFFTCIAL USE ONLY