more than 30 years there is no evidence of cancer of the skin. In fact I do not know of a case of cancer of the skin resulting from beta radiation. At CROSSROADS, I examined many men for skin contamination and I do not recall any excessive exposures and no evidence of "beta burns" were noted. So it seems extremely unlikely that any skin cancers would result. My second reference is to internal absorption of radiactive materials. Internal absorption of fallout in the Marshallese was readily evident from radiochemical urine analyses. Absorption was largely from ingestion of contaminated food and water with much less absorption from inhalation. This may have been partly due to the fact that the particle size of fallout was generally too large to get into the lungs. Animals removed from the island, who had been exposed showed most of the radioactivity in the gut with little in the lungs, Radioiodine, which later resulted in thyroid tumors in the Marshallese, was the only radioelement to exceed the permissible level. No other late effects have been noted from absorption of other radionuclides. It seems probable that the internal absorption of radionuclides in CROSSROADS personnel would have been for less than in the heavily exposed Marshallese since or no fallout from Test Able; (b) (a) there was little after Baker inhalation of radioactive particles would have been minimized due to washing down of the ships prior to boarding, the water tending to scrub out