number of them in the exposed group. The boat was loaded pretty well down to the water line and as we set out to cross the lagoon the early morning tide rushing through the passes into the lagoon caused a very turbulent and rough cross-chop. While it was of some comfort that we were rarely more than a few hundred yards from coral reefs and sandy beaches, the waves splashing over us made the outgoing trip rather miserable, and the fear of swamping with the possibility of encountering a shark or barracuda was not a very comforting thought. However, we arrived safe but very wet and set out hiking around to visit the old and feeble natives residing on this isolated spot. It took all day to conduct the examinations and collect the specimens. However, since the wind had died down and the tide was not running, the trip back was uneventful and dry. STUDIES ON SCHEDULE Our studies were concluded on schedule but not before a generator failure nearly cost us dearly. On Rongelap there was no electricity and a mobile generator had been sent out by the Navy. It was supposedly in good working condition andsince it supplied all our electrical equipment, including deep freeze and refrigerators where we stored our specimens and our food, it was a vital piece of equipment. The Ron Annim had sailed away although we were in touch with her by radio, also with Kwajalein. Doug ‘Clareus, our very capable electronics expert, had done a great job in the electrical department.: However. 48 hours after the ship had sailed the generator motor began to skip and before long it cut out altogether. Doug managed to get off a radio message before the power failed completely but try as he could, the generator motor would not function. Fortunately the Ron Annim had received our message and relayed it on to Kwajalein. The next morning, just as we were dispairing of saving our perishable food supply and specimens, a Navy am- phibious plane circled over the island and landed in the lagoon. On board were two generator repairmen and extra parts. The generator was finally fixed and a stand-by 32 generator flown in. We had no more trouble for the rest of our stay on Rongelap. The Marshallese were very cooperative on this visit and only one individual refused the examination. On prior surveys the team lived on board ship but living on shore in the tent was more comfortable and afforded a much better and closer association with the natives. On March 22nd the Ron Annim returned to the lagoon and after taking down the tent and packing up the equip- ment, we reloaded and sailed back to Kwa- jalein. On our way to Kwajalein a radio message directed to Bob Conard on the ship requested that members of the survey team proceed to the Island of Ponape in the Car- olines to examine a young Marshallese student who had been exposed to radiation on Rongelap. The Navy fiew us to Ponape, a beautiful mountainous island about 400 miles west of Kwajalein in the direction of the New Guinea coast. It was an exciting landing in the reef-infested lagoon and the lush green and very tropical-looking island proved to be a delightful and interesting place. On Ponape the District Administrator of the Trust Territory, Maynard Neas, his assistant, Dr. J. Umholfer and his wife, were extremely kind and hospitable. The following day we flew back to Kwajalein, meanwhile, the rest of the party visited Ebeye and finished up the examinations on a group of children and a few adults. The serum specimens were placed in dry ice for the air trip home, equipment was repacked for shipment by boat to the U. S. and on March 26th the party flew to Honolulu there team broke up and returned home. RESULTS ARE BEING ANALYZED The results of this survey are still being tabulated and analyzed; they will form the basis of another report prepared by Dr. Conard and his consultants. Undoubtedly no gross abnormalities will be found in these Marshallese and scars of beta burns have continued to fade. Depression of white cells and platelets noted earlier in the more heavily exposed natives, have long since returned to normal levels. However, on this survey for the first time cytogenetic studies Tufts Medical Alumni Bulletin

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