01142cam a22003131 4500 gs 53000204 DLC 20260227111400.0 780708s1953 dcuab b f000 0 eng gs 53000204 (OCoLC)4032493 DLC OClU ISS OCoLC DLC n-us-sd QE75 .P9 no. 247 QE461 .P287 553.1 552.1 I 19.16:247 Page, Lincoln R. (Lincoln Ridler), 1910- Pegmatite investigations 1942-1945, Black Hills, South Dakota, by Lincoln R. Page and others. Washington, U.S. Govt. Print. Off., 1953. viii, 228 p. illus., maps (part fold., part col.) 29 cm. Geological Survey (U.S.). Professional paper, 247 Part of the illustrative materials in pocket. "Selectd bibliography": p. 222-223. Pegmatites South Dakota. Pegmatites Black Hills (S.D. and Wyo.) Mines and mineral resources South Dakota. Mines and mineral resources Black Hills (S.D. and Wyo.) 28757 28757