32 Sample (16) CL 996: Age 3 years, Massachusetts, 55-320, December 23, 1955, ribs and Sunshine Units 0,60 + 0.04 . vertebrae, 5.33 g ash, 2.04 g Ca. (17) CL 998-P: Age 24 years, Massachusetts, A55-225, December 28, 1955, vertebrae 047 + 0.09 and ribs, 9.90 g ash, 3.02 g Ca. (18) CL 1000-P: age 11 years, Massachusetts, A55-327, December 30, 1955, vertebrae and 0.21 + 0,03 ribs, 33.48 g ash, 10.3 g Ca. (19) CL 1001: Age 6 years, New York, A561, January 1, 1956, vertebrae, .95 g ash, 0.6 + 0.1 1.85 € Cae (20) (21) CL 1002: Age 1 1/3 years, Massachusetts, 1.7 x 0.3 CL 1003: Age 7 weeks, Massachusetts, 0,80 x 0,08 456-2, Jmuary 1, 1956, vertebrae, 2.25 g ash, 0,82 g Ca. A56-3, January 2, 1953, vertebrae, 2.97 g (22) ash, 1.04 CL 100h-P: g Ca. Age 2 3/4 years, Rhode Island, A56—5, January , 1956, vertebrae, 6,8 ¢ 0.26 + 0,06 ash, 1.91 g Ca, (23) CL 1006-P: Age 5 months, New Hampshire, 456-6, January 6, 1956, vertebrae and 0.97 + 0,08 ribs, 6.96 g ash, 2.16 g Ca. (2h) CL 1007=P: Age 24 years, Massachusetts, A56-10, January 10, 1956, vertebrae, 5.98 g ash, 1.73 g Ca. C. O42 + 0,06 Adults (over 15 years) 1, United States a. Furnished by Dr. Shields Warren, Cancer Research Institute, New England Deaconess Hospital, Boston, Massachusetts. (2) CL 863=-P: Three samples combined, age range )0-)l,; years, Massachusetts, ribs, sterna and vertebrae, 51.2 g¢ ash, 17.7 g Ca. (a) #161066, age kh years, May 5, 1955, (b) #55A56, age O years, May 26, 1955. (c) #161952, age hO years, June 8, 1955, 0.046 + 0,012