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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 Pittsburgh-bed coal from Bureau of Mines Experimental mine, Bruceton, Allegheny County, Pa.


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