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Stemming in Metal Mines. Progress Report 2

Stemming in Metal Mines. Progress Report 5: Comparison of Dust and Gases Produced from Blasting Charges of Dynamite in Drill Holes, in Bombs, and in Mud-Cap Shots

Stemming in Metal Mines. Progress Report 3: Relative Advantages and Disadvantages of Different Types of Stemming and No Stemming When Used with 60 Percent Ammonia Gelatin Dynamite at the Mount Weather Testing Adit

National Safety Competition of 1942

Published Year

• 1940-1949 (4) *

Subject

• Mine safety. (4) *
• Blasting. (3)

Author

• Johnson, John A. (3)
• Agnew, Wing G. (2)
• Adams, William Waugh (1)

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