Search U.S. government technical reports digitized or harvested by TRAIL.
Methane in California gold mines
Underground hygiene and sanitation
Fire and ventilation doors in metal mines
Compressed-air blowers as an aid to metal-mine ventilation
Use of geophone in locating compressed-air leaks
Distribution of air in metal-mine ventilation with especial reference to flexible tubing methods
Carbon-monoxide hazards from tobacco smoke
Fatal accident from entering unventilated raise after blasting
Why, when, and how to make ventilation surveys of metal mines
Physiological factors of mine ventilation
Experiments on mine-fan performance