Data furnished on Form 220, Bureau of Mines.

Definition of "run of mine" coal.
Published: (1926)

Prolonging life of mine props : enormous saving in cost of coal mining can be effected by use of preservative treatments.
Published: (1906)

Sampling dust in rock-dusted mines.
Published: (1929)

Questions and answers on timbering bituminous coal mines.
Published: (1928)

Comparison of British and American coal mining conditions.
Published: (1920)

Falls of roof in bituminous coal mines : influence of seasons and rate of production.
Published: (1929)

Safety rules for installing and using electrical equipment in coal mines.
Published: (1926)

Area of unsupported roof in coal mines; conditions and factors for consideration.
Published: (1927)

Resistance of coal-mine entries to flow of air : Part IV. Resistance caused by right-angle bends.
Published: (1928)

Concrete stoppings in coal mines for resisting explosions : detailed tests of typical stoppings and strength of coal as buttress.
Published: (1931)

Timbering along robbing line; factors influencing falls of roof in coal mines.
Published: (1927)

Coal-mining royalties and leasing conditions in Williamson and Franklin Counties, Ill. (District No. VI).
Published: (1926)

Two-hundred-fifty versus 500 volts or more for circuits in gassy coal mines.
Published: (1932)

Analyses of coals in U.S., with descriptions of mine and field samples collected between July 1, 1904 and June 30, 1910 : Part 2. Descriptions of samples.
Published: (1913)

Missouri : accident-prevention record of coal mines in 1931.
Published: (1932)

Pennsylvania : accident-prevention record of coal mines in 1931.
Published: (1932)

Iowa : accident-prevention record of coal mines in 1931.
Published: (1932)

Colorado : accident-prevention record of coal mines in 1931.
Published: (1932)

Utah : accident-prevention record of coal mines in 1931.
Published: (1932)

New Mexico : accident-prevention record of coal mines in 1931.
Published: (1932)

Mines and mining : Coal product of Illinois, Ohio, Indiana, and Michigan.
Published: (1891)

Mines and mining : Coal product of West Virginia, Kentucky, Tennessee, Virginia, Georgia, and North Carolina.
Published: (1891)

Compilation of correspondence and statistical data from records and files of Department of Interior in relation to coal lands in Indian Territory, acreage and approximate value thereof, thickness of various veins of coal, et cetera, Mar. 27, 1906 to June 30, 1906.
Published: (1906)

Decrease in coal-mine accidents.
Published: (1920)

Fatalities in Alabama coal mines.
Published: (1930)

A practical treatise on the working and ventilation of coal mines : with suggestions for improvements in mining /
by: Hedley, John
Published: (1851)

First national mine-safety demonstration, Pittsburgh, Pa., Oct. 30 and 31, 1911; with chapter on explosion at experimental mine.
Published: (1912)

Procedure for applying for tests made on all explosives and blasting devices by the Explosives Division of the Bureau of Mines, prescribed conditions and requirements for permissibility when used in coal mines and schedule of fees for the tests.
Published: (1939)

Check sample of bituminous coal.
Published: (1926)

Sampling of coal.
Published: (1926)

Alaska coal leasing regulations amended.
Published: (1926)

Safety at mines of Ford Collieries Company, Curtisville, Pa.
Published: (1930)

Notes on prevention of dust and gas explosions in coal mines.
Published: (1913)

Safety at mines of Ford Collieries Company, Curtisville, Pa.
Published: (1930)

Fatal accidents in Alabama coal mines during 1930.
Published: (1931)

Geology and fuel resources of southern part of Oklahoma coal field : pt. 3. Quinton--Scipio district, Pittsburg, Haskell, and Latimer counties.
Published: (1938)