Maps of four quadrants in the Las Vegas area surveyed as part of a radiological survey, outlining "Radioactivity levels in hundreds of counts per second normalized to 500 ft above ground." Scale 1:250,000.

Abstract: "This report discusses tests conducted to determine the accuracy of meteorological equipment which is used to gather upper air data. Equipment tested was the GMD-2, SMD-1A, GMD-1B, and the WBRT-57. A four-station phototheodolite network was used as a standard for point-in-space determinations."

Report issued by the U.S. Bureau of Mines discussing mining methods and operations of mercury at the New Idria Mine. As stated in the introduction, "the purpose of this report is to promote the development and conservation of our mineral resources by dissemination of technological information on mining and processing procedures, and related practices at operating mines" (p. 1). This report includes maps, tables, illustrations, and photographs.

Report discussing earthquake activity in the United States during 1961. The report is broken down by regions and has sections for specific earthquakes.

Report regarding an airborne gamma-radioactivity survey that took place in the 2,800 square mile area around the Los Angeles region in California. Topics include the types of bedrock noted in the area as well as their levels of radioactivity.