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- The value of oxygen breathing apparatus to the mining industry
- Accident-prevention work of the Midwest Refining Co.
- The unusually good safety record of a coal mine and of a coal-mine foreman
- Colorado mine fatalities
- Mine safety and accident economy in Colorado metal mines
- Industrial safety training at a mining school
- Some observations as to safety hazards in 47 northern Colorado subbituminous coal mines
- Some observations on coal-mine fans and coal-mine ventilation