TRAIL - Technical Report Archive and Image Library

Mining methods and costs at the Interstate zinc & lead Co.'s Hartley Mine, Tri-state zinc and lead district

The significance of the Bureau of Mines approval of gas masks

Petroleum refineries in the United States, January 1, 1932

Vanadium

Mining laws of Newfoundland

Milling methods and costs at the concentrator of the Miami Copper Co., Miami, Ariz.

Shaft sinking at the Morton Salt Co. mine at Grand Saline, Texas

Shaft-sinking methods and costs, and cost of plant and equipment at the Macassa Mine, Kirkland Lake, Ontario

Milling methods and costs at a Flat River (Mo.) mill

Milling methods at the Balmat Mill of the St. Joseph Lead Co., Balmat, St. Lawrence County, N.Y.

Economic factors influencing the domestic demand for gasoline.

Mining methods and costs at Fresnillo, Zacatecas, Mexico

Production of explosives in the United States :during the calendar year 1931

Pneumatic tabling of coal :effect of specific gravity, size, and shape

A study of mine roof of the Pittsburgh coal bed in the Pittsburgh mining district

Methods and costs of mining and preparing gravel and sand for market at the plant of the Seaboard Sand and Gravel Corporation, Port Jefferson, N.Y.

Bonuses to encourage safe work and for work safely done

Mining laws of Norway

Safety progress in anthracite and bituminous coal fields

Ten years of fatal accidents and two years of accident costs in Indiana coal mining

The cost of developing to the operating stage and equipping a small or medium-sized mine in the Tri-State lead and zinc district

Coal-Mine Accidents in the United States, 1930

Metal-Mine Accidents in the United States During the Calendar Year 1930

Quarry Accidents in the United States During the Calendar Year 1930

Comparison of small and large scale experimental carbonizing apparatus :Tests of Pittsburgh Bed coal from Allison mine, Fayette county, Pa., and of a coal from the Michel Mine, British Columbia

Liquid-Oxygen Explosives

Paraffin and Congealing-Oil Problems

Gold Mining and Milling in the United States and Canada: Current Practices and Costs

Clinker Formation as Related to the Fusibility of Coal Ash

Safety Practices in California Gold Dredging

Rubber-Sheathed Trailing Cables

Heat Transfer From a Gas Stream to a Bed of Broken Solids

Permissible Electric Cap Lamps and Ventilation in Certain California Mines and Water-Tunnel Construction

Silver consumption in the arts and industries of the United States in 1930 and 1931

Physical-chemical properties of methane

Crushing and grinding limestone at the Howes Cave (N.Y.) plant of the North American Cement Corporation

Milling methods at the Concentrator of the Walker Mining Co., Walkermine, Calif.

Hazards to underground workers from inflammable surface structures near mine openings

The importance of discipline in mine safety

Mining methods and costs at the Braden Copper Co.'s mines, Sewell, Chile

Medical service, accident reports, compensation, and welfare at iron mines in the Lake Superior region

How to prevent death and injury from falls of roof in coal mines

Fuels consumed by the Federal Government during the fiscal year ended June 30, 1930

Good rock-dusting and ventilation practice in two Alabama coal mines

Economic size of metal-mine airways

Mining practice at the Edwards mine of the St. Joseph Lead Co., St. Lawrence County, N.Y.

Milling methods and costs at the Morning Concentrator of the Federal Mining and Smelting Co., Mullan, Idaho

Sinking practice and costs at the Pim Shaft, St. Louis Smelting & Refining Works, National Lead Co., St. Francois, Mo.

Milling methods and costs at the Page Concentrator of the Federal Mining and Smelting Co., Kellogg, Idaho

Public services for the identification of mineral specimens

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