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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

Official changes in the active list of permissible explosives and blasting devices approved prior to January 31, 1933

A study of falls of roof and coal in Northern Colorado

Washability studies of Blue Creek Bed at Connellsville Mine, Connellsville, Ala.

Review of fatalities in the California petroleum industry during the calendar year 1932

Explosive shattering of minerals

Washability studies of Mary Lee Bed at Powhatan Mine, Powhatan, Ala.

Washability studies of coal from the Mary Lee Bed at the Bankhead Mine, Bankhead, Ala.

A study of falls of roof and coal, Rock Springs Coal District, Sweetwater County, Wyo.

A study of subsurface pressures and temperatures in flowing wells in the east Texas field and the application of these data to reservoir and vertical-flow problems

A study of "bottom-hole" samples of East Texas crude oil

Investigations during 1932 of combustibles in manholes in Boston, Mass.

Consumption trends in the roofing-slate industry

The cleaning of fine coal from the Mary Lee Bed at the Porter Mine

Identification of cerussite and anglesite, and flotation with galena

Comparison of methods for determining friability of coal

Safety at petroleum cracking plants

Corrosion of steel by gases containing traces of hydrogren sulphide :effect of pressure and moisture conditions

Silicosis and tuberculosis among miners of the tri-state district of Oklahoma, Kansas and Missouri.

Theory of the torsion balance :with a preliminary study of a modification of the instrument to decrease time of gravity measurements

A study of the properties of Texas-New Mexico polyhalite pertaining to the extraction of potash.


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