USBM Technical Progress Reports:

TPR 0 /  Investigation of Odixation Systems for Improving Gold Recovery from Carbonaceous Materials, $ 5

TPR 19 / Studies on the Control of Respirable Coal Mine Dust by Ventilation, $ 8

TPR 20  /  Recovering Gold from Stripping Waste and Ore by Percolation Cyanide Leaching, $ 10

TPR 21  /  Construction and Testing of a Junk Auto Incinerator, $ 5

TPR 22 /  Recovery of Heavy Minerals from Alabama San and Gravel Operations, $ 5

TPR 31  /  Recovery of the Nonferrous Metals from Auto Shredder Rejects by Air Classification, $ 6

TPR 45  /  Electronic Color Sorting of Glass from Urban Waste, $ 5

TPR 33  /  Economics of Recycling Metals and Minerals from Urban Refuse, $ 5

TPR 34  /  Preliminary Separation of Metals and Nonmetals from Urban Refuse, $ 5

TPR 54 /  Fate of trace Mercury in the Combustion of Coal, $ 5

TPR 82 /  Preliminary Evaluation of Underground Coal Gasification at Hanna, Wyoming, $ 10

TPR 84  /  In Situ Combustion of Coal for Energy, $ 5

TPR 106  /  Construction and Preliminary Evaluation of a Diesel Exhaust Particulate Filter For Underground Use, $ 6