A passive means to detect hot trolley insulators.

The Pittsburgh coal bed ; its early history and development /
by: Eavenson, Howard Nicholas, 1873-1953
Published: (1938)

Surface Coal Mining : Characteristics of Mining in Mountainous Areas of Kentucky and West Virginia.
Published: (2009)

Statistics of coal : the geographical and geological distribution of mineral combustibles or fossil fuel, including, also, notices and localities of the various mineral bituminous substances employed in arts and manufactures ... embracing, from official reports of the great coal-producing countries, the respective amounts of their production, consumption and commercial distribution, in all parts of the world, together with their prices, tariffs, duties and international regulations ... with incidental statements of the statistics of iron manufactures ... /
by: Taylor, Richard C. (Richard Cowling), 1789-1851
Published: (1848)

The road to heaven : a romance of morals /
by: Beer, Thomas, 1889-1940
Published: (1928)

Hazard of igniting coal by electric circuits in mines.
Published: (1936)

A cost comparison of selected U.S. and Indonesian coal mines /
by: Sherer, Erik
Published: (1994)

A Cost comparison of selected U.S. and Australian coal mines /
Published: (1989)

Coal, a contemporary energy story /
by: Lindbergh, Kristina
Published: (1977)

Toward safer underground coal mines /
Published: (1982)

A National inventory of abandoned mine land problems : an emphasis on health, safety, and general welfare impacts /
Published: (1984)

The coal-mining industry : an international study in planning /
by: Jones, J. Harry (John Harry), 1881-
Published: (1939)

Man and materials: coal /
by: Ridpath, Ian
Published: (1975)

Coal, energy and crisis /
by: Chaffin, Lillie D.
Published: (1974)

Geophysical studies to detect the Acme Underground Coal Mine, Wyoming /
by: Miller, C. H. (Carter H.)
Published: (1987)

The adjustment of wages ; a study in the coal and iron industries of Great Britain and America /
by: Ashley, W. J. (William James), 1860-1927
Published: (1903)

Histoire de la recherche, de la découverte et de l'exploitation de la houille : dans le Hainaut français, dans la Flandre française et dans l'Artois, 1716-1791 /
by: Grar, Edouard, 1804-
Published: (1847)

The coal primer : a reference handbook for the non-coal people ... /
by: Rogers, William P.
Published: (1978)

Fire detection for conveyor belt entries /
by: Litton, C. D. (Charles D.)
Published: (1991)

Practical coal mining.
by: Mason, Ernest
Published: (1954)

Coal mining practice /
by: Statham, Ira Cyril Frank, 1886-
Published: (1958)

Nome-Shelton-Kugruk River-Keewalik reconnaissance. Letter from the Secretary of War, transmitting, with a letter from the Chief of Engineers, report on the feasibility, desirability, and cost of the best and most practicable connection between the Nome-Shelton system of communications and the coal deposits of the Kugruk River, Chicago Creek, and the Keewalik mining district, whether by wagon road, sled road, tramway, trail, or other means.
Published: (1922)

Coal Supply of D.C. hearings before the United States Senate Committee on the District of Columbia, Fifty-Seventh Congress, second session, on Jan. 12, 1903.
Published: (1903)

Coal Supply of D.C. hearings before the United States Senate Committee on the District of Columbia, Fifty-Seventh Congress, second session, on Jan. 13, 1903.
Published: (1903)

Coal Supply of D.C. hearings before the United States Senate Committee on the District of Columbia, Fifty-Seventh Congress, second session, on Jan. 20, 1903.
Published: (1903)

Coal Supply of D.C. hearings before the United States Senate Committee on the District of Columbia, Fifty-Seventh Congress, second session, on Jan. 8, 1903.
Published: (1903)

Coal Supply of D.C. hearings before the United States Senate Committee on the District of Columbia, Fifty-Seventh Congress, second session, on Jan. 16, 1903.
Published: (1903)

Coal Supply of D.C. hearings before the United States Senate Committee on the District of Columbia, Fifty-Seventh Congress, second session, on Jan. 15, 1903.
Published: (1903)

Coal Supply of D.C. hearings before the United States Senate Committee on the District of Columbia, Fifty-Seventh Congress, second session, on Jan. 9, 1903.
Published: (1903)

Methods of working coal and metal mines.
by: Woodruff, Seth D.
Published: (1966)

[Granting to Home Mining Company coal underlying bed of Missouri River opposite Leavenworth.].
Published: (1889)

The Economics of coal /
Published: (1981)

Neutral start methods on mobile electrical equipment.
Published: (2012)

Coal country : the meaning and memory of deindustrialization in postwar Scotland /
by: Gibbs, Ewan
Published: (2021)

Historical mining disasters.
by: DeMarchi, Jane
Published: (1997)

Longwall mining /
by: Peng, Syd S., 1939-
Published: (2019)

Dust control on a longwall face with a shearer-mounted dust collector /
by: Jayaraman, Natesa I.
Published: (1977)