28 cases with 7th nerve weakness involving thelids; two cases of anisocoria (unequal pupils); and an increasedincidenceof strabismus. Residual “Beta Burns” Persisting residual effects of “beta burns’’ were found to be present in 19 people, 6 children and 13 adults. These are outlined in Table 17. The skin changesconsisted of hyperkeratosis, and varying degrees of atrophy, scarring, and pigment aberrations(see Figures 19 and 20). These changes were slight in most of the people. The development of lentigo-like and papular pigmented nevus-like lesions in areas of previous “beta burns” wasfirst observed several years ago, and these lesions appearto have been increasing slightly since that time (see Figure 21). Histological study of a biopsy of one of these lesions showed it to be a typical benign pigmented nevus. The residual changesin the skin of the Marshallese who had sustained acute “beta burns” have shownneitherfissure tissue breakdownin the affected areas as seen in chronic radiation dermatitis nor evidence of malignant change. Only one case showeda few spots of alopecia of the occipital area ofthe scalp as a residuum ofepilation. Figure 22 showshistological residual changesin a lesion at 10 years after exposure. * LABORATORY EXAMINATIONS Hematological neck of 56-year-old woman (No. 34) at 10 years after exposure (100 x). Note atrophy of epidermis with narrow- Summarytables of hematological! data are presented in the tables and graphsin the text, and raw data on the individuals are presented in the appendices. The more heavily exposed Rongelap present. *Dr. David A. Wood of the University of California Medical Center, San Francisco, did the histological interpretations. Figure 22. Section ofskin from “beta burn” area on back of ing of stratum granulosum and finger-like projections of rete pegs. Slight atrophy of the sweat gland ductsis also