Report issued by the Bureau of Mines over studies conducted on the bentonite deposits of San Benito County, California. As stated in the introduction, "the purpose of the study was to learn if these large deposits contain bentonite of sufficient quality and quantity to be of economic value as an oil-well drilling mud additive" (p. 1). This report includes tables, maps, illustrations, and photographs.

Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.

Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.

Report issued by the Bureau of Mines over studies conducted on clays of petroleum-reservoir rocks in Kern County, California. The effects of water sensitivity of clays are presented. This report includes tables, maps, illustrations, and photographs.

Report issued by the U.S. Bureau of Mines discussing materials surveys conducted on mercury. As stated in the foreword, "the surveys dealing with metals and minerals summarize the demand-supply position in the United States and include information on production, imports, consumption, exports, substitutes, and pertinent history" (p. v). This report includes maps, tables, illustrations, and photographs.

From Introduction: "The purpose of this investigation was to examine the question of the availability of geothermal energy and in particular the availability of geothermal energy from the Black Hills of South Dakota.