Search U.S. government technical reports digitized or harvested by TRAIL.
Investigation of Sweetsprings manganese deposits :Monroe County, W. Va., and Craig County, Va.
Investigation of Boiling Springs manganese-iron deposits :Cumberland County, Pa.
Investigation of the Lander phosphate rock deposits, Fremont County, Wyo.
Coal-mining methods and practices in western Arkansas :preliminary investigation
Preliminary ceramic tests of clays from seven Pacific Northwest deposits
Investigation of Pickering Creek lead-zinc deposits :Chester County, Pa.
Physical properties of mine rock.
Explosive properties of hydrazine
Sheath working of metal powders
Investigation of Red-Back magnetite mine, Sterling Lake, Orange County, N.Y.
Synthetic liquid fuels :1948 annual report of the Secretary of the Interior.
Coal hydrogenation :the effect of variations in the coal-to-vehicle ratio
Synthetic liquid fuels :1948 annual report of the Secretary of the Interior.
Investigation of Rush Creek zinc district, Marion County, Ark.
Investigation of coal deposits in south central Alaska and the Kenai Peninsula
Pilot-plant concentration of Arkansas aluminum ores
Chloride volatilization and other tests on a gold-copper ore
Preliminary tests of gold and zinc ores from Buzzard mine, Placerville, Calif.
Coproducts of coke in the United States, 1919-1947
Accident experience iron-ore mines, Lake Superior district, 1940-47
Investigation of Valzinco lead-zinc mine, Spotsylvania County, Va.
Investigation of the Tennessee Zinc Co. property, Bumpus Cove, Unicoi County, Tenn.
Investigation of Broughton and Ring magnetite deposits, Essex County, N.Y.
Gaseous reduction methods for the production of sponge iron
Laboratory studies of the gravitational drainage of oil from unconsolidated sands
Effect of operating variables upon the Fischer-Tropsch synthesis
Concentration of oxide manganese ores from northeastern Utah, Daggett Chief and Gray Hawk properties
Thermochemical study of the stability relation of geikielite and ilmenite in rocks
Investigation of Black Mountain beryl deposit Oxford County, Maine
Investigation of Muir Inlet or Nunatak molybdenum deposits, Glacier Bay, southeastern Alaska
Investigation of Big mica mine Cheshire County, N.H.
Application of ion exchange resins in the cyanidation of a gold and silver ore
Investigation of the Nigger Jim lead diggings, Lafayette County, Wis.
Investigation of Potato Mountain tin placer deposits Seward Peninsula, northwestern Alaska
Investigation of Eve Mills zinc deposit, Monroe County, Tenn.
Thermochemical study of the olivines and orthopyroxenes
Investigation of Claim Point chromite deposits Kenai Peninsula, Alaska
Investigation of Parker and Webb zinc deposits, St. Lawrence County, N.Y.