Weathering of the Pittsburgh coal bed at the experimental mine near Bruceton, Pa.
By: by Horace C. Porter and A.C. Fieldner.
Contributors: Fieldner, A. C. 1881-
Series: [United States] Bureau of mines. Technical paper,; 35
Publisher: Govt. Print. Off.
Published: 1914
Place of publication: Washington
Language: eng
Number of pages: 35
Subjects: Coal-weathering
Other titles: Experimental mine near Bruceton, Pa.
Notes: "Publications on fuel technology": p. 33-35.
At head of title: . . . Department of the interior. Bureau of mines. Joseph A. Holmes, director.
On verso of t.-p.: First edition. January, 1914 . . .