Technical report issued by the Bureau of Mines over the different uses of gypsum. The sources and uses of gypsum are presented and discussed. This report includes tables, photographs, and illustrations.

Report issued by the Bureau of Mines discussing the sulfurous acid leaching of the Southwest experiment station. Operations and analyses of the experiment station are presented. This report includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines discussing the mechanical equipment used in oil and gas wells of the Oklahoma City field. As stated in the introduction, "this paper presents the results of a study devoted chiefly to new equipment that has been developed to meet the requirements of drilling and producing operations in the Oklahoma City field and that has been accepted by drilling contractors and operators" (p. 1). This report includes tables, illustrations, and photographs.

Technical paper issued by the Bureau of Mines over studies of waste in oil and gas fields in the mid-continent area. As stated in the introduction, this report "describes the general amounts and kinds of waste, and attempts to show the importance of conserving these natural resources" (p. 5). This paper includes tables, maps, illustrations, and photographs.

Report issued by the Bureau of Mines discussing the recovery of waste emulsions in crude-oil storage tanks. As stated in the introduction, this study was undertaken to find a method of recovering a valuable oil from pit-waste emulsion" (p. 2). Detailed recovery methods are presented. This report includes tables, illustrations, and photographs.

Technical paper issued by the Bureau of Mines over the underground wastes of oil and gas in drilling fields. As stated in the introduction, "the writers have endeavored to establish the manner and importance of underground waste by citing a few cases and to show the means whereby it can be prevented" (p. 5). This paper includes illustrations.

Report issued by the Bureau of Mines discussing a manual written for individuals who use natural gas in the home. As stated in the introduction, "its purpose is to tell about the supply, production, and distribution of natural gas, so that the necessity for preventing waste will be better understood" (p. 1). This report includes a map, illustrations, and photographs.

Report issued by the Bureau of Mines discussing analyses of the Eastern and Western coal fields in Kentucky. The two coal fields are described in detail. This report includes tables, and illustrations.

Technical paper issued by the Bureau of Mines over studies on dust respirators. The development and efficiency of the respirators are discussed. This paper includes tables, illustrations, and photographs.

Technical paper issued by the Bureau of Mines over the quarry accidents during the year of 1915 in the U.S. The locations and types of quarry accidents are presented. This paper includes tables.

Report issued by the Bureau of Mines discussing the occurrence of tuberculosis and silicosis among mine workers of the Tri-State district including Oklahoma, Kansas, and Missouri. Past history of the diseases are presented, as well as the standard means of examination of miners. This report includes a map, tables, illustrations, and photographs.