Search U.S. government technical reports digitized or harvested by TRAIL.
Mine ventilation in the Coeur d'Alene mining district
Pressure losses due to bends and area changes in mine airways
Economic size of metal-mine airways
Engineering Factors in the Ventilation of Metal Mines
Charts for determining the performance of centrifugal fans
Ventilation at the anthracite collieries of the northern Pennsylvania field
Some observations on the causes, behavior, and control of fires in steep-pitch anthracite mines