NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES 9-1, 4-chome, Anagawa, Chiba-shi, Japan blood analyser, an automatic blood cell counter and other small examination rooms including a culture room and a dark room. With the use of the ship most of the results of examinations will be available more quickly than at present. 2ea. I feel that the present treatment of AEC team is adequate. Most remarkable late effects of the exposed Marshallese were thyroid abnormalities. The methods of the treatment of these abnormalities are quite adequate according to the Brookhaven National Laboratory Report. 2~b. The Rongelapese were irradiated by following three ways; external irradiation by } -ray, irradiation. Brradiation to skin, and internal The treatments of the injuries due to XY -ray and £ -ray irradiation were reasonable. According to the present knowledge, when the uptake of radioactive iodine is suspected, inorganic iodine, f.e. Nal should be given to the suspicious patients as soon after irradiation as possible, The Rongelapese were evacuated about 2 days after the initial exposure. Even if these people had been given a dose of NaI containing 200 mg of stable iodine at that time, uptake of radioactive iodine might not have been much reduced. 215 bOiesez4