TRAIL - Technical Report Archive and Image Library

Truck haulage at the National Lead Co. open-cut ilmenite-magnetite mine, Tahawus, N. Y.

Investigation of the Oronogo-Webb City-Duenweg zinc-lead district, Jasper County, Mo.

Investigation of the Vicksburg lead-zinc mine, Beaver County, Utah

Effect of temperature on flame-arresting properties of flat joints in explosion-proof mine equipment

A study of stray currents in Pennsylvania anthracite mines

The use of dust respirators in coal mines

Mining and milling methods at San Xavier mine, the Eagle-Picher Mining & Smelting Co., Pima County, Ariz.

Mining and milling methods at the Caselton Mine, Combined Metals Reduction Co., Pioche, Lincoln County, Nev.

The evaluation of converters for exothermic and endothermic catalytic reactions occurring within narrow temperature limits

Fundamentals of smoke abatement

Coal for coke production

Mining methods and costs at the Highland Surprise Mine, Shoshone County, Idaho

Report of the Health and Safety Division :fiscal year 1949

Electrical blasting at Miami Copper Co., Miami, Ariz.

Permissible mine equipment approved during the calendar years 1947-49

Hydraulic tunneling in St. Peter sandstone at Minneapolis, Minn.

Central mine rescue station, Globe-Miami district, mine rescue and first-aid association, Globe Ariz.

Roof bolting in the United States

Coal-mine explosions and coal- and metal-mine fires in the United States in 1949

Carbide insert bit drilling at the Cleveland-Cliffs Iron Co. mines, Ishpeming, Mich.

List of respiratory protective devices approved by the Bureau of Mines

Achievements in mine safety research and problems yet to be solved

Natural gasoline and cycle plants in the United States, January 1, 1950

Mining, milling, and manufacturing methods at the Blue Diamond Corp.'s gypsum property, Clark County, Nev.

Annual report of research and technologic work on coal :fiscal year 1949

Review of dust-allaying practices at working faces in some bituminous-coal and lignite mines

Review of literature on health hazards of beryllium and its compounds

Safety practices in churn drilling at Morenci Branch, Phelps Dodge Corp, Morenci, Ariz.

Report of Petroleum and Natural-gas Branch :fiscal year 1949

Conditions and practices at coal mines in the Ruhr district of western Germany

Investigation of the Beecher no. 2 lithium-bearing pegmatite, Custer County, S. Dak.

Investigation of the Clinton Jackson quartz crystal deposits, Carroll County, Va.

Investigation of the Romur tungsten deposits, Fremont County, Wyo.

Effects of core recovery, diamond size, and quality on cost of core drilling in gneiss

Development of a successful multiple percussion drill carriage

Investigation of the Union zinc-lead mine, Washoe County, Nev.

A test of treated timbers in a mine at Negaunee, Mich.

Titanium and iron minerals from black sands in bauxite

A method of test for SO₂ and SO₃ in flue gases

Investigation of the Gideon sillimanite deposit, Spartanburg County, S.C.

Investigation of the magnesite deposit of the Ala-Mar Magnesium Co, Inc., and Nevada Magnesite Co., White Pine County, Nev.

Investigation of the fluorite deposits of the Dike and Eaton veins, Crittenden County, Ky.

Investigation of the Brown-Tipton zinc deposit, Greene County, Tenn.

Shuttle-car conversion from storage battery to diesel-electric power, Acme Mine, Certain-teed Products Corp., Acme, Hardeman County, Tex.

Investigation of the Rutherford pegmatite mine, Amelia County, Va.

Investigation of the West Tintic tungsten deposit, Juab County, Utah

Proposed process for treatment of low-grade titaniferous ores :laboratory tests on sintering with carbon and soda ash to produce metallic iron and soluble titanates

Pressure-relieving capacities of diaphragms and other devices for venting dust explosions

Manometric precision procedure for determining the vapor pressure of aviation gasolines

Investigation of the Zebulon or Privett manganese deposit, Wake County, N.C.

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