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Carbonizing properties and constitution of Chilton bed coal from Boone no. 2 mine, Logan County, W. Va.
Carbonizing properties and petrographic composition of Powellton-bed coal from Elk Creek no. 1 mine, Emmett, Logan County, W. Va. :and the effect of blending this coal with Pocahontas no. 3- and no. 4-bed coals