Search U.S. government technical reports digitized or harvested by TRAIL.
Concentration of copper-cobalt ores from the Blackbird District, Lemhi County, Idaho
Bauxite deposits in Tippah and Benton Counties, Miss.
Laboratory concentration of complex sulfide-oxide ore from Shenandoah-Dives mine, Silverton, Colo.
Ellington manganese deposit, Reynolds County, Mo.
New dry concentrating equipment
Performance of a diesel mine locomotive
Measurement of coking pressure in a small laboratory oven
Investigation of Arkansas bauxite
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Investigation of Arkansas bauxite.
Lead, zinc, silver, copper, bismuth deposits, South Hecla mine, Alta, Salt Lake County, Utah
R©Øesum©Øe of Bureau of Mines research and development work on western coals, 1942-47
Mirror Harbor nickel deposits :Chichagof Island, Alaska
Electrowinning of cobalt from cobaltite concentrates
Some studies on emergency mine communications
Survey of commercial aviation-gasoline characteristics July 1948 production
Survey of commercial aviation-gasoline characteristics :January 1948 production
Investigation of the Argall (Baggaley) zinc-lead mine, Iowa County, Wis.
Support of ground, iron-ore mines, Lake Superior district
Shaft sinking by diamond drilling, Bellefonte mine, National Gypsum Co., Centre County, Pa.
Emergency escapeways from coal mines
Magnetometric survey of the Mahopac magnetite mine, Putnam County, N.Y.
Investigation of the Sauk Mountain limestone deposits, Skagit County, Wash.
Investigation of the Minah lead-silver mine, Jefferson County, Mont.
Investigation of Arkansas bauxite.
Natural-gasoline and cycle plants in the United States, January 1, 1948
Ignition qualities of hydrocarbons in the diesel-fuel boiling range
Acid mine water in the anthracite region of Pennsylvania
Cranberry magnetite depositsAvery County, N.C., and Carter County, Tenn.
Methods and costs of sinking a 2-1/2-compartment shaft at the Hope Mine, Clark Fork, Idaho
Diamond drilling blast holes, Bell Mine, the Warner Co., Centre County, Pa.