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Carbonizing properties and constitution of Pittsburgh bed coal from Edenborn mine, Fayette County, Pennsylvania

Carbonizing properties and constitution of Alma bed coal from Spruce River no. 4 mine, Boone County, W. Va.

Check determinations of grindability of coal by various methods

Carbonizing properties and petrographic composition of Pond Creek bed coal from Majestic mine, Majestic, Pike County, Ky.

Carbonizing properties and petrographic composition of High Splint bed coal from Closplint mine, Closplint, Harlan County, Ky.

Carbonizing properties and petrographic composition of washed and unwashed Lower and Upper Kittanning-bed coals from mines 72 and 73, Johnstown, Cambria County, Pa.

Carbonizing properties and petrographic composition of Sewell bed coal from Wyoming Mine, Wyoming County, W. Va., and the effect of blending this coal with Alma bed coal

Carbonizing properties and petrographic composition of Pittsburgh-bed coal from Bureau of Mines Experimental mine, Bruceton, Allegheny County, Pa.

Carbonizing properties and petrographic composition of Upper Freeport coal from Morgantown District, Monongalia County, W. Va. :and of Lower Freeport coal from eastern Indiana County, near Cambria County, Pa.

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