Search U.S. government technical reports digitized or harvested by TRAIL.
Semi-pilot-plant tests on treatment of manganese-silver ores by the dithionate process
Carbonizing properities of Lower Banner coal from no. 56 mine, Dante, Russell County, Va.
Investigation of the Abbott quicksilver mine, Lake County, Calif.
Asphalts from Rocky Mountain Crude Oils :laboratory preparation and comparison
Hazards of black blasting powder in underground coal mining
Major disasters at metal and nonmetal mines and quarries in the United States (excluding coal mines)
Mining practices at the Harrington-Hickory mine Beaver County, Utah
Safe electrical practices in two Arizona open-pit mines
Safety practices at United Verde Mine, Phelps Dodge Corp., Jerome, Ariz.
Safeguarding underground workmen from noxious gases resulting from blasting in strip mines
Investigation of tungsten occurrences in Darwin District, Inyo County, Calif.
Investigation of Suffern graphite depositsn Rockland County, N.Y.
Investigation of the Hogan tin mine Kern County, Calif.
The National Fuel Efficiency Program During the War Years, 1943-45
Investigation of tin-bearing pegmatities in the Tinton area, Lawrence County, S. Dak.
Generation and propagation of strain waves in rock :part I
Methods of excavation and roof support used in some recently constructed tunnels
Summary of published information on large-capacity compressed-air receivers for underground mines
Crude-oil and refined products pipe-line mileage in the United States :January 1, 1950
Petroleum refineries, including cracking plants, in the United States, January 1, 1950
Lead smelting in the ore hearth
Investigation of the Sunrise copper-gold mine, Granite County, Mont.
Investigation of Smuggler lead-zinc mine, Aspen, Pitkin County, Colo.
Tests on the control of coal-mine fires in the experimental coal mine
Investigation of Guadalupe mercury mine, Santa Clara County, Calif.
Investigation of fluorite deposits of Babb Vein System, Crittenden and Livingston counties, Ky.
Limits of flammability and ignition temperatures of phthalic anhydride
Investigation of Taylor Creek lead-zinc deposit, Kupreanof Island, Petersburg, Alaska
Investigation of the Tapley copper deposit, Hancock County, Maine
Secondary recovery of oil by air and gas injection in the Brenneman Field, Hancock County, W. Va.
Investigation of Eagle Silver lead-zinc mine, Tooele County, Utah
Investigation of the Great Eastern nickel deposit, Clark County, Nev.
Recent rock-dusting experiments for arresting coal-mine explosions
Investigation of Nevada Scheelite, Inc., deposit, Mineral County, Nev.
Flotation of a North Carolina pyrophyllite ore
Investigation of North Empire zinc-lead deposit, Cherokee County, Kans.
Flotation and cyanidation tests on a gold-copper sulfide ore from Cooke, Mont.
Investigation of the Cove Meadow copper deposit, Humboldt County, Nev.
Investigation of the New Almaden mercury mine, Santa Clara County, Calif.
Analyses of crude oils from some fields of southeastern United States,