Search U.S. government technical reports digitized or harvested by TRAIL.
Design and Operation of a Four-Ton-Per-Hour Gold and Silver Ore-Sampling Plant
Annual Report of the Mining Division, Fiscal Year 1941
Annual Report of the Mining Division, Fiscal Year 1942
Utilization of Three Kids Manganese Ore in the Production of Electrolytic Manganese
Lake Valley Manganese Deposits, Sierra County, New Mexico
Investigation of the Huber-Rydalch Manganese Deposits, Tooele County, Utah
Carbon Dioxide Content of Mine-Fire Atmospheres as an Aid when Fighting Metal-Mine Fires
Investigation of the Tem Piute Tungsten Deposit, Lincoln County, Nevada
Slip-and-Fall Accidents During Equipment Maintenance in the Surface Mining Industry