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- Danger to the public from abandoned mine workings and other property
- The cost of accidents to industry
- Safety education at iron mines of the Lake Superior region
- Safety inspections in and around iron mines in the Lake Superior district
- Safety standards and safety suggestions at iron mines in the Lake Superior region
- Safety in the iron mines of the Menominee Range, Michigan
- Safety consciousness
- Medical service, accident reports, compensation, and welfare at iron mines in the Lake Superior region