Search U.S. government technical reports digitized or harvested by TRAIL.
State regulations governing the use of trolley wires in mines
Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine
Permissible Storage - Battery Locomotives and Power Trucks
Summarized Data of Gold Production
Factors Governing the Entry of Solutions into Ores During Leaching
Twenty-first semiannual motor gasoline survey
A study of the properties of Texas polyhalite pertaining to the extraction of potash
Check determinations of fusibility of coal ash with the De Graaf electric coal-ash fusion furnace
Sensitization of ammonium nitrate by nitrostarch
Study of high manganese slags in relation to the treatment of low-grade manganiferous ores
Washability studies of the Mary Lee Seam at Lewisburg, Alabama
A study of the properties of Texas polyhalite pertaining to the extraction of potash.
The recovery of oil from sands by the "gas drive"
The Trauzl block strength of dynamites
A survey of the sulphur content of commercial motor fuels - 1930
A diaphragm or "breather" roof for oil-storage tanks
Acrolein as a warning agent for detecting leakage of methyl chloride from refrigerators
Extinction of methane flames by dichloro-difluoro-methane
Coal-dust explosions in mines caused by direct electrical ignition
Method for measuring voids in porous materials
Fundamental and applied research on the physical chemistry of steel making
Processes for extracting radium from carnotite
The action of sulphur dioxide on manganese oxides at elevated temperatures
The effectiveness of different-size rock dusts in preventing coal-dust explosions in mines
Some phases of the relative responsibility of management and workers for accidents in mines
Economic relations of silver to other metals in argentiferous ores
Petroleum coke :an economic survey of its production and uses
Mining practices, methods, and costs at mine no. 5 of the Marquette Range, Michigan
Mining practice at the Pecos mine of the American Metal Co. of New Mexico
What the superintendent of a coal mine might do to prevent injury from falls of roof
Study of quarry costs :trap rock, sandstone, granite
Methods and costs of concentrating tungsten ore at the Nevada Massachusetts Mill, Mill City, Nevada