Bulletin. 522. Carbonizing properties. West Virginia coals from Beckley bed, Caretta no. 5 mine, McDowell County, and Glen Rogers no. 2 mine, Wyoming County [with list of Publications on survey of carbonizing properties of American coals]; by D. A. Reynolds, J. D. Davis, D. E. Wolfson, B. W. Naugle, R. E. Brewer, G. W. Birge, and W. H. Frederic.

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