Resins in Coal

Precision of the Volatile-matter Determination for Anthracite, Low-temperature Coke, and Subbituminous Coal

Determination of Moisture-holding Capacity (bed Moisture) of Coal for Classification by Rank

An Investigation of a Laboratory Test for Determination of the Free-swelling Index of Coal: Revision of R.I. 3989

Analyses of Ash from Coals of the United States

Fusibility of Ash Coals of the United States: Volumes 207-212

Low-temperature Distillation Yields of Primary Tar and Light Oil from Coals of Various Ranks and Types

Notes on the Sampling and Analysis of Coal

Clinker Formation as Related to the Fusibility of Coal Ash

The Determination of Moisture in Coke

Low-temperature Carbonization of Alaskan Coals

Methods of Sampling and Analyzing Coal-mine Dusts for Incombustable Content

Methods of Analyzing Coal and Coke

The Determination of Combustible Matter in Silicate and Carbonate Rocks

Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1916 to 1919: Issue 193

Mining and Preparing Domestic Graphite for Crucible Use

Carbonizing Properties: West Virginia Coals from the Eagle, No. 2 Gas, Pocahontas No. 3 and Pocahontas No. 4 Beds, Issues 487-493

Splint Coals of the Appalachian Region: Their Occurrence, Petrography, and Comparison of Chemical and Physical Properties with Associated Bright Coals

Friability, Grindability, Chemical Analyses, and High- and Low-temperature Carbonization Assays of Alabama Coals

Coal-mine Fatalities in February, 1925: Issues 2676-2680