Report issued by the Bureau of Mines discussing safety measures adopted by mining operations in the United States. As stated in the introduction, "this report deals solely with accidents in coal mines and with the means of prevention that have been determined and officially approved by the bureau" (p. 2). This report includes tables.

Report issued by the Bureau of Mines over experiments conducted on coal-dust explosions. The results of the experiments are presented and discussed. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines consisting of bibliographies for petroleum bulletins. The bibliographies for bulletins published between 1919 and 1920 are presented.

Report issued by the Bureau of Mines over studies conducted on types of explosives. Properties, materials, and methods of different explosives are discussed. This report includes tables, and illustrations.

Report issued by the Bureau of Mines over the production methods and uses of plastic magnesia. Methods, properties, and uses of plastic magnesia are discussed. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines over investigations on surface subsidence from coal mining in Illinois. The results of the investigations are presented and discussed. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines over studies conducted on red iron-ore mining near Birmingham, Alabama. Results of the studies are presented and discussed, as are mining methods. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines over studies conducted on thin coal beds of the anthracite region in Pennsylvania. Results of the studies are presented and discussed. This report includes tables, maps, illustrations, and photographs.

Report issued by the Bureau of Mines over investigations conducted on lignite. Preparation methods and uses of lignite are discussed. This report includes tables, maps, illustrations, and photographs.

Report issued by the Bureau of Mines over investigations conducted on lignite. Preparation methods and uses of lignite are discussed. This report includes tables, maps, illustrations, and photographs.

Report issued by the Bureau of Mines over the design of safe electrical accessories for use in mining equipment. Different types of electrical accessories are presented and discussed. This report includes illustrations.

Report issued by the Bureau of Mines over studies conducted on the ferric sulphate-sulphuric acid process. As stated in the introduction, "the work reported here comprises merely a study of the chemistry of the process and the mechanical conditions that would have to be observed in practice" (p. 1). This report includes tables, and illustrations.

Report issued by the Bureau of Mines over studies conducted on the production and uses of silica. Forms and different uses for silica are discussed. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines over studies conducted on the inflammability of the gases found in mines. As stated in the introduction, "it is the object of this paper to present the results of a critical review of all figures published on the limits of inflammability of combustible gases and vapors when in admixture with air, oxygen, or other "atmosphere" (p. 1). This report includes tables, and illustrations.

Report issued by the Bureau of Mines over the carburetion of many different fuels. The report pays particular attention to the carburetion of water gas. Carburetion methods and results are presented and discussed. This report includes tables, and illustrations.

Report issued by the Bureau of Mines over studies conducted on the ground movement and support failure of Michigan mines. Factors involved in surface subsidence in the mines are discussed. This report includes tables, maps, illustrations, and photographs.

Report issued by the Bureau of Mines over studies conducted on iron oxide reduction. As stated in the scope of bulletin, "this bulletin, therefore, presents the properties of the common oxides of iron, their combinations with each other, and the reduction-equilibrium diagrams by which the investigator passes from one to the next; the end point is not pure iron but the carburized iron of the blast furnace, cast iron" (p. 1-2). This report includes tables, and illustrations.

Report issued by the Bureau of Mines over statistical records kept on petroleum refineries during 1927. Statistical information on different forms of petroleum is discussed. This report includes tables.

Report issued by the Bureau of Mines over information obtained on manufactured gas production instead of natural gas production. The information collected is discussed. This includes such topics as rates, methods, and locations of gas. This report includes tables, maps, illustrations, and photographs.

Report issued by the Bureau of Mines over studies conducted on the effects of vapor flow through beds of broken solids. Methods and results of the studies are presented and discussed. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines over the production of sulfuric acid. As stated in the introduction, "the present bulletin was prepared to cover the main facts in regard to the industry in this country, including a discussion of the supplies of sulfur-bearing raw materials, the situation of the acid plants, the principal points in regard to manufacturing processes, and the uses of the acid" (p. 2). This report includes tables, illustrations, photographs, and a map.

Report issued by the Bureau of Mines covering petroleum laws of the U.S. and surrounding oil producing countries. As stated in the preface, "this bulletin includes the petroleum laws of (1) United States; (2) the several oil-producing States; (3) Canada; (4) Mexico; (5) the Republics of Central and South America" (p. iv).

Report issued by the Bureau of Mines over the electrothermic metallurgy and smelting of zinc. Different smelting methods, processes, and equipment are presented and discussed. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines over talc and soapstone. The different mining methods, as well as their uses are discussed. This report includes tables, illustrations, and photographs.