Report issued by the U.S. Bureau of Mines on experiments conducted to improve the cab conditions of freight engines. The temperature, gas content, and other properties are presented. This report includes tables, graphs, and illustrations.

From Introduction: "Coal dust as an agent of widespread explosions had been under suspicion, and watering to allay the dust was recommended by some mining engineers but the watering of coal-mine dust was adopted in comparatively few mines of the United States and Great Britain, and had not been introduced widely in any country except Germany. Rock dusting, another method of preventing explosions of coal dust, was early tested with success by the Bureau of Mines in its first gallery at Pittsburgh and, beginning in 1911, at the experimental mine, Bruceton, Pa."

From Scope of Bulletin: "The material presented is divided into two main parts. Part I describes the evaporative tests of the marine water-tube boilers, and Part II describes the evaporative tests of the Scotch marine boiler."

From Introduction: "However, before the flame lamp becomes obsolete, it is fitting that the Bureau of Mines compile a permanent record of a device which has served the mining industry for more than three generations, and not only made possible the development of entire districts that otherwise could have not been worked but undoubtedly saved the lives of thousands of underground workers."

From Scope of Bulletin: "This bulletin reviews, in the light of the recent experience, the use of production-decline curves in estimating the future production of oil from wells. The bulletin does not deal with costs, oil prices, or the methods of evaluating oil properties."

Report compiled by the U.S. Bureau of Mines including statistics on fatalities in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.

From Introduction Scope of Investigation: "The purpose of the present paper is to discuss, in some detail, the principles involved in water-gas manufacture as they apply to the use of bituminous generator fuel; and to discuss in more detail the results obtained in the Streator tests and the application in other plants of the operating methods."

From Introduction: "On account of extensive folding and faulting of the coal measures, mining in Washington presents many difficulties; therefore a description of the methods employed at some of the mines may be useful in planning operations in other regions, and is presented in this bulletin."

Revised report issued by the U.S. Bureau of Mines discussing studies conducted on the development of the oil-shale industry from a historical, technical, and economic perspective. Results of the studies are presented. This report includes tables, illustrations, and photographs.

Technical paper issued by the Bureau of Mines over gas masks developed for gasoline and petroleum vapors. Descriptions of different types of gas masks developed are presented. This paper includes tables, photographs, and illustrations.

Technical paper issued by the Bureau of Mines over experiments conducted on the back pressure of oil wells. The results of the experiments are presented and discussed. This paper includes tables, photographs, and illustrations.

This report analyzes experiments made to develop a method of utilizing the immense deposits of lignite in the United States.