Search U.S. government technical reports digitized or harvested by TRAIL.
Clinker Formation as Related to the Fusibility of Coal Ash
Petroleum Refinery Statistics: 1930
Contributions to the Data on Theoretical Metallurgy: [Part] 1. The Entropies of Inorganic Substances
Safety Practices in California Gold Dredging
Rubber-Sheathed Trailing Cables
Tests of Rock-Dust Barriers in the Experimental Mine
Heat Transfer From a Gas Stream to a Bed of Broken Solids
Removal of Soot from Furnaces and Flues by the Use of Salts or Compounds
The Ignition of Fire Damp by Explosives: A Study of the Process of Ignition by the Schlieren Method
Small-scale placer-mining methods
Small-scale placer-mining methods
Silver consumption in the arts and industries of the United States in 1930 and 1931
Physical-chemical properties of methane
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
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.
Shaft-Sinking Practices and Costs
Summarized Data of Tin Production
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 "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
Silicosis and tuberculosis among miners of the tri-state district of Oklahoma, Kansas and Missouri.