Coal. Carbonizing properties and petrographic composition of no. 1-bed coal from Bell no. 1 mine, Sturgis, Crittenden County, Ky., and effect of blending this coal with Pocahontas no. 3-and no. 4-bed coals; by J. D. Davis, D. A. Reynolds, R. E. Brewer, G. C. Sprunk, and L. D. Schmidt.

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