Report issued by the U.S. Bureau of Mines on a survey of the New Albany oil-shale deposits in Indiana. The experimental procedures for surveying and sampling these shale deposits are presented in detail. This report includes tables, and graphs.

Report issued by the U.S. Bureau of Mines on the possibilities of applying oxygenated air during metallurgical and allied processes. The methods and results of applying oxygenated air to these processes are presented. This report includes tables and graphs.

Report issued by the U.S. Bureau of Mines on a study of the causes of employee accidents in California oil fields during the year of 1921 - 1922. This investigation was conducted to develop safety procedures and future accident prevention. This report includes tables.

Report providing information about the most appropriate kinds of breathing apparatus -- gas masks, hose masks, or self-contained oxygen-breathing apparatus -- to use in different situations.

Report discussing "the extent and nature of the hazards to firefighters from gases and smoke resulting from the application of carbon tetrachloride extinguisher to electric arcs, burning insulation or fires such as may occur in electrical apparatus and machinery. The experiments described were made for the purpose of determining the nature of gases and smoke and ascertaining their toxic properties" (p. 1).