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At head of title: United States Dept. of the interior. Harold L. Ickes, secretary. Bureau of mines. R.R. Sayers, director ...
Electronic reproduction. Denton, Texas : University of North Texas, 2015 . Electronic reproduction from print master produced by University of North Texas.
Preface, by A.C. Fieldner.--The anthracite fields of Pennsylvania, by G.H. Ashley.--Methods of mining and preparation of coal, by A.L. Toenges and G.E. McElroy.--Production, distribution, and use, by M. Van Siclen and J.W. Buch.--Relation of mine samples to commercial shipments, by N.H. Snyder.--Analyses of mine, breaker, and delivered samples, by H.M. Cooper, R.F. Abernethy, E.C. Tarpley, N.H. Snyder, and R.J. Swingle.--Description of mine samples, by H.M. Cooper, R.F. Abernethy, and E.C. Tarpley. Description of breaker and delivered samples, by N.H. Snyder and R.J. Swingle