Sample be 30 Sunshine Units lima, Peru: Furnished by Dr, Alberto Hurtado, Naternity Hospital of Lima. Collection arrange- ments made by Dr. R, &. Watson, Rockefeller Foundation, Rio de Janeiro, Brazil, (1) CL 812-P: Age few hours, July , 1955, ribs and femur, 0,903 g asn, 0.33 @ Ca, 20.45 (2) CL 809-P: Age few hours, July 6, 1955, ribs and femur, 1,26 g ash, 0.46 g Ca. Obb + 0.16 (3) CL 80h: (4) CL 607: Age 6 days, A #55-2h7, August h, 1955, ribs and femur, 2,4 ¢ ash, 1,11 g Ca. (5) CL 506: Age few hours, A #55-251, August 8, 1955, ribs and femr, 1.26 ¢ ash, Age few hours, August 3, 1955, ribs and femur, 5.1 g ash, 1.96 g Ca; 0.49 g Ca. Age 8 days, A #55-2h6, August 0.36 + 0,12 (6) CL 810->: (7) CL 811: Age few hours, A #55-2h5, August 5, 1955, ribs and femur, 2,4 g ash, 0.99 0.7 + 0.1 CL 808-P: 0.64 + 0,28 S, 1955, 1.53 & ash, 0,48 g Ca, g Ca, (8) (9) B. Age 10 days, & #55-365, Sep-. tember 9, 1955, ribs and femur, 1.08 g ash, 0. g Ca. CL 805-P: Age 1) days, A #55-357, Sep~ tember 10, 1955, ribs and femur, 1.2 g 2.16 + 0.10 Children (30 days to 15 years) l. United States ae Furnished by Dr. Shields Yarren, Cancer Research Institute, Nev England Deaconess Hospital, Boston, tlassachusetts. (1) (2) CL 850-P: Age 84 years, Massachusetts, 435102, April 15, 1955, vertebrae, 6.47 g ash, 2,26 g Ca, CL 851: Age 2 10/12 years, Massachusetts, «55-103, «april 16, 1955, vertebrae, 5,1 0.13 + 0,04 NYGUO 40,21 g ash, 1.8) g Ca, 6/