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- Notes on Explosive Mine Gases and Dusts: with Special Reference to Explosions in the Monongah, Darr, and Naomi Coal Mines
- From Introduction: "The studies herein reported were begun as a part of researches undertaken by the United States Geological Survey looking to the more efficient utilization of the coal in the United States through the reduction of the waste in its extraction, and were continued as part of further researches having regard to the conversation of the fuel resources of this country and to the lessening of injuries and fatalities in coal mining."