Table III summarizes the frequency of abnormal findings from physical examination in the children. Additional nodules of the thyroid gland were found in exposed children, both in March 1965 and in the following September thyroid resurvey, These will be described below, One child (No. 1061) born to nonexposed parents had hydrocephalis, developmental retardation, and hepatosplenomegaly. Another child (No. 1055), also born to nonexposed parents had diagnostic stigmata of mongolism. | Growth hormone determinations from blood samples following insulin injections proved to be unsatisfactory. The period of hypoglycemia was apparently not sustained long enough to produce maximum growth hormone levels, pone Goodenough "Draw-A-Man" Tests ‘1? were done on a number of children and are being analyzed with the hope that numerical scores will provide some measure of mental development in the growth retarded children. Conduction of such tests are difficult to carry out and interpret due to Language barriers, uncertainty of cultural, social, and educational background, as well as possible family influences, A detailed analysis of the growth and development data on the Marshallese children during the period of 1958 through 1963 has been published, ‘13) Further analysis will be undertaken when additional results related to the following two aspects of the study become available, First, the results of administration of thyroid hormone to the exposed Rongelap population, begun in September, will be helpful in evaluation of the possible existence of hypothyroidism as related to growth retardation, exposed children are now 1l years old, Second, the four youngest Within a short time, therefore, all of the exposed group will be well into or past the adolescent age, and a comprehensive analysis of growth in each of the children will be possible, 590142)