Search U.S. government technical reports digitized or harvested by TRAIL.
Cooperative mining at the Keely Mine, Dugger, Indiana
Some factors affecting losses of coal in mining
The economic relation of accidents and preventable diseases to the coal-mining industry
Sanitary survey of the coal mines of Alabama
State laws relating to coal-mine timbering
Work of the experiment stations of the Bureau of Mines
What do we know about the explosibility of coal dust in mines?
Shaft sinking at the Sevier Valley Coal Co. mine
What the coal miners can do to prevent injury from falls of roof
Mining bituminous coal by stripping methods
A study of falls of roof and coal in mines in the number 8 field of eastern Ohio
A study of falls of roof and coal in mines of Harrison County, West Virginia
How to prevent death and injury from falls of roof in coal mines
Timber withdrawing and devices used for this purpose in some coal mines
An international viewpoint on safeguarding electrical equipment used in gassy mines
Competitive conditions in the international coal trade
Hazard of igniting coal by electric circuits in mines
Shaft- and slope-bottom lay-outs at coal mines
The importance of adequate voltage for distribution systems in coal mines
Truck vs. rail haulage in bituminous-coal strip mines
Coal-mine explosives :their characteristics, selection and safe use
Studies of roof movement in coal mines.
Some phases of haulage accident prevention in anthracite mines
Multiple-shift mechanical mining in some bituminous coal mines.
Studies of roof movement in coal mines.
Contact potential in electrostatic separation
The use of dust respirators in coal mines
Review of dust-allaying practices at working faces in some bituminous-coal and lignite mines
Hazard of firing open, unconfined shots in coal mines
Technology of lignitic coals : in two parts ;
Technology of lignitic coals :in two parts ;
Cementation of bituminous-coal-mine roof strata.
Mining and transporting coal underground by hydraulic methods :a literature survey
Cementation of bituminous-coal-mine roof strata :injection of epoxy and polyester-type resins
Use of sonic techniques in exploring coal-mine roof strata :a progress report
Costs of mining under bolted roof and timbered roof in bituminous coal mines
Hydraulic coal mining research :equipment and preliminary tests
Proposed standardization of coal mine examination records
Sealing a coal-mine passageway through a borehole :a progress report