Carbonizing Properties and Petrographic Composition of No. 1-bed Coal from Bell No. 1 Mine, Sturgis, Crittenden County, Ky: And the Effect of Blending this Coal with Pocahontas No. 3- and No. 4-bed Coals
Joseph Dana Davis ¡ Dewey A. Reynolds ¡ Ralph Emmet Brewer ¡ George C. Sprunk ¡ Lawrence Delos Schmidt
āĻāĻžāύ⧠⧧⧝ā§Ēā§§ ¡ U.S. Department of the Interior, Bureau of Mines