Technical papers. 721. Reserves, petrographic and chemical characteristics, and carbonising, properties of coal occurring south of dry fork of Minnesota Creek, Gunnison County, near Paonia, Colo., and geology of area; by Albert L. Toenges, James J. Dowd, Louie A. Turnbull, J. D. Davis, H. L. Smith and Vard H. Johnson.

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