Report issued by the U.S. Bureau of Mines discussing the mining costs and methods of the Regal asbestos mine in Arizona. Location, history, production, and development details are presented. This report includes tables, maps, illustrations, and photographs.

Report issued by the Bureau of Mines discussing waterflooding techniques used in Osage County, Oklahoma. As stated in the introduction, "information on each individual project covered in this report includes the early history, methods used to complete wells, source and treatment of water, description of automatic custody-transfer systems, oil production-decline curves, mineral analysis of waters, typical electric logs and core analyses, development maps, and the results of waterflooding" (p. 2). This report includes tables, maps, and illustrations.