Search U.S. government technical reports digitized or harvested by TRAIL.
Methods for the recovery of platinum, iridium, palladium, gold, and silver from jewelers' waste
Bentonite :its properties, mining, preparation, and utilization
Distillation-amalgamation methods for the technical determination of mercury in ores
The action of sulphur dioxide on manganese oxides at elevated temperatures
Laboratories that make assays, analyses and tests on ores, minerals, and other substances
Bentonite:its properties, mining, preparation, and utilization