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Tests of the compressibility and bearing strength of potash salt

Experiments on strength of small pillars of coal in the Pittsburgh bed

Characteristics of fuel pitches and their explosibility in pulverized form

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

Published Year

• 1930-1939 (2)
• 1940-1949 (2)

Subject

• Coal mines and mining--Explosives (1)
• Coal mines and mining--Pennsylvania--Pittsburgh (1)
• Coal mines and mining--Safety measures (1)
• Explosives--Safety measures (1)
• Mine explosions--Prevention (1)
• Potash deposits--New Mexico (1)
• Potash industry and trade--New Mexico (1)

Author

• Greenwald, H. P. (4)
• Howarth, H. C. (4) *
• Hartmann, Irving. (2)
• Hartmann, Irving, (1)
• Nagy, John. (1)
• Rice, George Samuel, (1)

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