00781cam a22002531 4500 gs 52000238 DLC 20260227111359.0 770317s1952 dcub b f00000 eng c gs 52000238 //r853 U.S. Geol. Survey. Libr ak n-us-ak QE75 .C5 no. 195 553.49 White, Max Gregg, 1916- Radioactivity of selected rocks and placer concentrates from northeastern Alaska. Washington, 1952. 12 p. maps. 27 cm. Geological Survey circular 195 Bibliographies included. Radioactive substances. Mines and mineral resources Alaska. Geological Survey circular ; 195. 28672 28672