Search U.S. government technical reports digitized or harvested by TRAIL.
Progress reports - metallurgical division.
Progress reports :metallurgical division.
Progress reports :metallurgical division.
Annual report of the petroleum and natural-gas division :fiscal year 1939
Underground transportation of coal :Progress report 1
Measurement of pressures on rock pillars in underground mines.
Annual report of the nonmetals division, fiscal year 1940
Quantitative analysis by x-ray diffraction.
Differential grinding of Alabama iron ores for gravity concentration
Cooperative fuel research motor-gasoline survey :Winter 1939-40
Diesel locomotives in gassy mine workings of Belgium
National safety competition of 1939
Analyses of some Illinois crude oils
A twenty years' survey of the use of sheathed explosives in Belgium
Tests of salt as a substitute for rock dust in the prevention of coal-dust explosions in mines
A method for determining the water content of oil sands
Study of brine-disposal systems in Illinois oil fields
Active list of permissible explosives and blasting devices approved prior to June 30, 1940
Annual report of the Explosives Division, fiscal year, 1940
Darkening light-color soils with coal-mine waste
Concentration of manganosiderite ore from Leadville, Colo.
Contributions to the art of smelting lead products
Explosive properties of cyclopropane :prevention of explosions by dilution with inert gases
Phenomena observed during prolonged oxidation of anthracite
Studies of roof movement in coal mines.
Gaseous products from explosives.
Measurements of compressibility of consolidated oil-bearing sandstones
Flocculation as an aid in the clarification of coal washery water
Application of well-test data to the study of specific gas-production problem
Cooperative fuel research motor-gasoline survey, summer 1939
Tests on the effect of acid mine waters on various cements
Progress reports - Metallurgical Division.
Progress reports :metallurgical division.
House movement induced by mechanical agitation and quarry blasting :progress report [No.] 3
Use of rock dust in bituminous-coal mines
Permissible electrically operated pumps
Progress reports :metallurgical division.
Progress reports :metallurgical division.
Hydrogenation and petrography of some low-rank coals from the western United States