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Carbonizing properties and petrographic composition of High Splint bed coal from Closplint mine, Closplint, Harlan County, Ky.
Carbonizing properties and petrographic composition of Taggart-bed coal from mines 30 and 31, Lynch, Harlan County, Ky. :and the effect of blending this coal with Pocahontas no. 3-and no. 4-bed coals