Search U.S. government technical reports digitized or harvested by TRAIL.
National annual survey of commercial aviation gasoline :October, 1949 production
Solvent extraction of coal by aromatic compounds at atmospheric pressure
Investigation of the Winterboro talc deposits, Talladega County, Ala.
Investigation of Gilley fluorspar deposits, Cherokee County, Ala.
Investigation of Stange and Byrnes Heirs manganese mines, Bland and Giles Counties, Va.
A preliminary survey of zirconium alloys
Analyses of some crude oils from the Middle East, South America, and Canada
Deep-well pumps and shaft pumps in anthracite mines of Pennsylvania
Investigation of the Rose Run iron area, Bath County, Ky.
Laboratory tests on percolation leaching of silica from bauxites
Report of research and technologic work of explosives, explosions, and flames :fiscal year 1949
Investigation of Perkiomen Creek copper deposits, Montgomery County, Pa.
Magruder and Chambers copper deposits, Lincoln and Wilkes counties, Ga.
Synthetic liquid fuels :annual report of the Secretary of the Interior for 1949.
Synthetic liquid fuels :annual report of the Secretary of the Interior for 1949.
Investigation of Oriskany iron-ore depositsAlleghany, Bath, Botetourt, and Craig counties, Va.
Helium tracer-gas studies in the Cabin Creek, W. Va. oil and gas field
Centrifugal pump installations in anthracite mines of Pennsylvania
Contribution to the metallurgy of chromium
Physical properties of coke :size and its measurement
Investigation of southwestern Arkansas mercury district, Howard, Pike, and Clark Counties, Ark.
Investigation of the Almedia lead-zinc deposit, Columbia County, Pa.
Synthetic liquid fuels :annual report of the Secretary of the Interior for 1949.
Bureau of Mines strategic minerals development program :summary of progress, 1939-1949
Laboratory concentration of mercury ores from Oregon, California, Idaho, and Nevada
Vibrations associated with a spherical cavity in an elastic medium
Guide to prospecting for lode gold
Underground transportation in the Ruhr coal-mining district of Germany
Drilling and blasting, open-cut iron-ore mines, Lake Superior District
Effects of the inhalation of oxygen
Economic importance of pegmatites
Historical r©Øesum©Øe of mine and tunnel ventilation studies, Bureau of Mines, 1910-49
A circuit for firing seismic blasting caps
Investigation of the Douglas copper deposit Hancock County, Maine
Oxidation of magnetite concentrates
Investigation of Furniss tungsten deposits, Cabarrus County, N.C.
Investigation of Black Rock manganese deposits, Esmeralda County, Nev.
Investigation of the Fannie Ryan and Boulder City manganese deposits, Clark County, Nev.
Recent developments in combination cleaning and dewatering of fine sizes of coal
Preparation characteristics of coal occurring in Cambria County, Pa.
Undecomposed steam in lignite gasification
Investigation of Daggett Chief manganese deposit, Manila, Daggett County, Utah
Phenol and cresols in coal tar from coals carbonized at 800⁰ and 900⁰ C.