Bituminous coal losses and mining methods in Pennsylvania
Subtitle: including thickness, character, and reserves of coal
By: by James D. Sisler. Pub. by cooperation with the United States coal fact finding commission and United States Bureau of mines
Series: Pennsylvania. Dept. of forests and waters. Bulletin -- M4; Bulletin (Pennsylvania. Department of Forests and Waters) -- M4
Published: 1924
Place of publication: Harrisburg?
Language: eng
Number of pages: 216
Subjects: Bituminous coal; Coal mines and mining
Notes: At head of title: Pennsylvania. Geological survey, fourth series.