ores special projects during the past year are worthy of mention 1% this connection. The first was a complete survey of HT Shop, which vas undertaken with the cooperation of Group H-5, the Industrial Hygiene Group. This was carried out by Dr. Fred Alexander fron a pedical point of view. This comprised a survey of air and urinary concentrations of uranium coupled with medical, chemical, and hemat Logical examinations. The survey comprised # group of some fifty and no evidence could be found of any physical or chemical damage t this group as a result of their exposure, The second project was also carried out by Dr. Alexander in whieh a survey of cover a hundred men who have heavy exposures to HE was carried cut. Here again, complete medical and hematological ex; aninations with liver and kidney tests were carried out on this gr of men. No evidence that any had suffered from any deleterious effects from their exposure to HE could be obtained. A number gave a hist or showed physical finding of other non-cecupational diseases to the flesh is heir, such as high blood pressure, rheumatian, peptic ulesr, etc. The incidence in this group was no higher than might expected from a similar age group with no exposure. The third project was camplete examination of over a fund , men to date in preparation for their participation in the Greenhous Operation. This examination consisted of a complete history, medic examination, x-ray examination, hematology and serology examination Of the group to date only two have been found physically disqualifi -27 6 \ D01309°5 029 | eee LOu4bbE a LANL