The
coal fields of the United States
Bownocker, J. A. (John Adams)
1865-1928
creator
Campbell, Marius R. (Marius Robinson)
1858-1940
text
dcu
Washington
U.S. Govt. print. off.
1929
monographic
eng
iv, 101 p. incl. tables, diagrs. IX pl. (incl. 7 fold. maps, (2 in pocket) fold. tab. 29 cm.
General introduction, by Marius R. Campbell; Ohio, by J. A. Bownocker.
At head of title: Department of the interior.
Issued also as House doc. no. 1806, 64th Cong., 2d sess.
Coal
Ohio
Coal
United States
QE75 .P9 no. 100
I 19.16:100
I 19.16:100
U.S. Geological survey. Professional paper 100
gs 30000220
Library, U.S. Geological Survey
780520
20260227111334.0
gs 30000220