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Carbonizing properties of Powellton-bed coal from Coal Mountain mine, Guyan, Wyoming County, W. Va.

Carbonizing properties of Eagle-bed coal from Prospect shaft, Carbon, Kanawha County, W. Va.

Carbonizing properties of velva lignite from Ward county, N. Dak., and monarch coal from Sheridan county, Wyo.

Carbonizing properties of western coals

Carbonizing properties of Elkhorn no. 3-bed coal from Wheelwright mine, Floyd County, Ky.


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