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Permissible explosives tested prior to March 1, 1913

Permissible explosives tested prior to January 1, 1914

Methods for routine work in the Explosives physical laboratory of the Bureau of mines

Tests on the ignition of natural gas-air mixtures by permissible explosives in the experimental coal mine

Published Year

• 1910-1919 (3)
• 1940-1949 (1)

Subject

• Coal mines and mining--Explosives (4) *
• Explosives (2)
• Explosives--Testing (1)

Author

• Hall, Clarence. (2)
• Greenwald, H. P. (1)
• Hartmann, Irving. (1)
• Howarth, H. C. (1)
• Howell, S. P. (1)
• Nagy, John. (1)
• Tiffany, J. E. (1)

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