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Permissible explosives, mining equipment, and apparatus approved prior to January 1, 1925

Analyses of Colorado coals

Published Year

• 1920-1929 (1)
• 1930-1939 (1)

Subject

• Coal mines and mining--Safety measures (1)
• Coal--Analysis (1)
• Coal--Colorado (1)
• Explosives (1)

Author

• Fieldner, A.C. (2) *
• Cooper, H.M. (1)
• Crawshaw, John Edwards, (1)
• Denny, E.H. (1)
• George, R. D. (1)
• Ilsley, L.C. (1)
• Parker, D.J. (1)
• Perrott, G. St. J. (1)
• Snyder, N.H. (1)
• Young, W. H. (1)

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