abnormalities at the time of delivery, that they did, indeed, occur and were perhaps due to irradiation of one or more of the parents. As to fertility, the final word was written in the three year report which said that "It is entirely possible that a temporary loss of fertility may have occurred shortly after exposure in some of the people." This possibility, however, according to the report, will never be known because of the oft-mentioned lack of "satisfactory vital statistics" and because the numbers of individuals are too small to reach any definite conclusions. Rather, in consideration of the evidence of temporary sterility induced in Japanese fishermen as found by Kumatori, the Committee believes that “entirely possible" should be changed to “almost certainly."' increased incidence of Aside from the stillbirths and miscarriages recorded in early years, there appear to be no long term effects in this area. One possibility which cannot be entirely discounted is the likelihood that there were even more stillbirths and miscarriages not reported and that it is likely some of them were caused by irradiation of one or more of the parents. Growth and Development Of particular interest to the Committee were the survey findings connected with growth retardation of exposed children. This development was acknowledged as early as the 1956 report which recorded weight loss during the first six weeks after exposure in persons under 16 years of age. (p. 22) The 1957 report at three years expressed the sense, as the reports do with many areas, that it is "difficult to evaluate the effects of the radiation exposure on growth and development because of the small numbers of children involved.” (p. 18) Weight and height differences in children 4-10 years old were lOve TIT tro