Accidents from falls of roof and coal
By: by G.S. Rice.
Series: [U.S.] Bureau of Mines. Miners' circular; 9
Publisher: Govt. Print. Off.
Published: 1912
Place of publication: Washington
Language: eng
Number of pages: 16
Subjects: Coal mine accidents -- Prevention.; Coal mines and mining -- Safety measures.
Notes: At head of title: ... Department of the Interior. Bureau of Mines. Joseph A. Holmes, director.
"Publications on mine accidents and tests of explosives": p. 15-16.