Frommer's? Great Britain Day by Day
Lake Superior Iron Resources
Experiments in Concentrating Lead Sulfide Slime
Flotation of Marquette Range Nonmagnetic Taconite Using Innovative Procedures
Experimental Upgrading of Artificial Magnetite Concentrates by Flotation
Pilot Plant Flotation of Nonmagnetic Taconite and Semitaconite
Leaching Michigan Copper Ore and Mill Tailings with Acidified Ferric Sulfate
Laboratory Recovery of Manganese Carbonate from the Martin Mine
Recovering Iron Concentrates from the Pea Ridge Deposit, Central Missouri
A Mineral-dressing Study of Manganese Deposits of West-central Arkansas
Experimental Treatment of Barite Ores from Montgomery County, Ark. and Morgan County, Mo
Experimental Upgrading of Artificial Magnetite Concentrates by Flotation