Technical Report Archive & Image Library (TRAIL) - 1,521 Matching Results

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Primary view of Mine Workings Under a Part of the Central Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the South Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the Keyser Valley Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the North Providence Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the Southeast Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the Central Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the Central Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Index Map of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the Central Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the Green Ridge Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Mine Workings Under a Part of the South Section of the City of Scranton
United States. Bureau of Mines.
1912
Primary view of Analyses of Virginia Coals
Eby, J. Brian, (James Brian), 1896-; Campbell, Marius Robinson, 1858-1940; Paul, J. W.; Fieldner, Arno Carl, 1881-1966; Cooper, Harry Mac, 1882-; Osgood, F. D., 1888-1935 et al.
1926
Primary view of Approved Electric Lamps for Miners
Clark, H. H. & Ilsley, L. C.
July 1917
Primary view of The Legendary "White Metal" and its "Ore"
Davis, C. W.
December 1925
Primary view of Metal Mine Ventilation and its Relation to Safety and Efficiency in Mining Operations
Harrington, D.
June 1920
Primary view of Recovery of Gold from Black Sand Tailings
Gross, John
October 1920
Primary view of The Recovery of Unburned Fuel from Boiler Furnace Refuse
Fraser, Thomas & Yancey, H. F.
September 1921
Primary view of Comparison of Gas Masks, Hose Masks, and Oxygen-Breathing Apparatus
Katz, S. H. & Bourquin, J. J.
June 1923
Primary view of Carbon Tetrachloride Extinguisher of Electric Fires
Katz, S. H.; Gleim, E. J. & Bloomfield, J. J.
July 1923
Primary view of Future Timber Supply for Coal Mines: What One Company is Doing
Tracy, L. D.
November 1926
Primary view of What is Known about the Effect of Smoke on Health
White, William Charles
December 7, 1926
Primary view of Thermodynamic Properties of Forsterite and Serpentine
King, E. G.; Barany, R.; Weller, W. W. & Pankratz, L. B.
June 1967
Primary view of Investigation of Lower Coal Beds in Georges Creek and North Part of Upper Potomac Basins, Allegany and Garrett Counties, Maryland: Reserves, Petrographic and Chemical Characteristics of Coals, and Stratigraphy of Area
Toenges, Albert L.; Turnbull, Louis A.; Williams, Lloyd & Smith, H. L.
1949
Primary view of Reduction Mills in Montana in 1925
Gerry, C. N.
March 1927
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