Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
6 results returnedSearch results
- Some preliminary data on methods for allaying coal dust in tipples and cleaning plants
- Some of the hazards of auxiliary fans in coal mines
- Precautions to be taken when approaching old mine workings
- Surface storage of explosives
- Hazards of entering old mine workings
- Underground metal-mine fires from cutting and welding