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- Beneficiation studies of columbium-tantalum-bearing minerals in alluvial black-sand deposits
- Beneficiation studies of nickeliferous ores from the Shamrock Mine, Jackson County, Oreg., and the Congress Mine, Ferry County, Wash.
- Flotation of beryl from north-eastern pegmatites :a progress report
- Flotation studies on copper-nickel sulfide ores from deposits near Rockport, Maine
- Flotation of titanium minerals from the Roseland anorthosite, near Roseland, Nelson County, Va.