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- Ball-mill grindability indexes of some American coals
- Preparation tests of lignite from a deposit near Toledo, Lewis County, Wash.
- Washability characteristics and washing of coals from the Matanuska field of Alaska
- Cleaning characteristics and cleaning tests of Montana coal
- The role of viscosity in dense-medium coal cleaning
- Operating results with the feldspar fine-coal jig
- Cleaning trials on subbituminous coal containing bentonitic clay from Lewis and Thurston Counties, Wash.
- Performance of a screw-type, classifier-cyclone combination :a laboratory evaluation
- Evaluation of washery performance
- Use of a sieve bend and a scalping deck with a vibrating screen in dewatering and draining dense medium from fine coal