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Method of increasing lump-coal production with especial reference to Southern Illinois

Active list of permissible explosives and devices approved previous to June 30, 1943

Published Year

• 1920-1929 (1)
• 1940-1949 (1)

Subject

• Coal mines and mining--Explosives (2) *
• Blasting (1)
• Blasting--United States (1)
• Coal mines and mining--Illinois (1)
• Explosives--United States (1)

Author

• Tiffany, J. E. (2) *
• Gaugler, Z. C. (1)
• McKitterick, J. J. (1)

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