Search U.S. government technical reports digitized or harvested by TRAIL.
Correlation of analysis of coal with products of carbonization in externally heated retorts
A washability study of the Woodstock coal bed at Klondyke mine, West Blocton, Ala.
Investigation during 1937 of combustibles in manholes in Boston, Mass.
Bureau of Mines - A.P.I. pressure core barrel :progress report on its design and development
Annual report of the nonmetals division, fiscal year 1939
Relative air dustiness during cycle of operations at Mount Weather Testing adit
Expansion of coal during coking
Carbonizing properties of a subbituminous coal from Puritan Mine, Dacono, Weld County, Colo.
Properties of Louisiana crude oils.
Some asphalts from Oregon Basin (Wyoming) crude oil
Some signaling systems in metal-mine shafts
Investigation of electrical equipment, safety lamps, and gas detectors for safety
Mining and milling methods and costs at the Black Hills Tin Co., Tinton, S. Dak.
Reconnaissance of placer-mining districts in Lemhi County, Idaho
Formation, collection, and treatment of coal dust in mines
Saving gold by means of corduroy
Petroleum refineries, including cracking plants, in the United States, January 1, 1939
Some fundamentals of smoke abatement
Testing and design of respiratory protective devices
Coal-Mine Accidents in the United States, 1936
Metal-Mine Accidents in the United States During the Calendar Year 1936
Static Electricity in Nature and Industry
Strategic minerals investigations :procedure followed by the Bureau of Mines