Amenability of Coals from the Roslyn-Cle Elum (Washington) Field to the Production of High-ash Boiler Fuel

Washability Studies and Cleaning Trials on Coals from Pierce County, Wash

The Role of Viscosity in Dense-medium Coal Cleaning

Disposal of Solid Wastes from Coal Mining in Washington, Oregon, and Montana

Performance of Dense-medium Cyclone in Cleaning Fine Coal

Behavior of Clays Associated with Low-rank Coals in Coal- Cleaning Processes

Washability Examinations of Coals from the Rocky Mountain and Pacific Coast States

Preparation Tests of Lignite from a Deposit Near Toledo, Lewis County, Wash

Evaluation of Washery Performance

Some Practical Aspects of Appraising Coal-washing Results

Operating Results with the Feldspar Fine-coal Jig

Cleaning Unsized Fine Coal in a Dense-medium Cyclone Pilot Plant

Laboratory Cleaning Trials on a Pennsylvania Anthracite in a Baum-type Jig and a Dense-medium Pilot Plant

Washability of Coals from the Matanuska Valley and Beluga River Fields, Alaska

Washability Characteristics and Washing of Coals from the Matanuska Field of Alaska

Fine-screening of Coal: Testing of the Sieve Bend

Flocculation as an Aid to Filtration of Coal Slurry

Performance of Baum Jigs in Treating Rocky Mountain Coals

Performance of Tables in Cleaning Alaska Coals

Dewatering Coal Flotation Tailing by the Admixture of Crushed Washery Refuse