00897cam a22002531 4500 gs 50000116 DLC 20260227111356.0 761110s1950 cau 000 0 eng gs 50000116 (OCoLC)2550839 DLC OT DLC premarc TN24.C2 A3 no. 156 California. Division of Mines and Geology. Mineral commodities of California; geologic occurrence, economic development, and utilization of the state's mineral resources ... prepared by the staff of the Division of mines under the direction of Olaf P. Jenkins ... San Francisco, 1950. 443 p. Its Bulletin 156 Bibliographical footnotes. Mines and mineral resources California. Mineral industries California. Directories. 28464 28464