The anthracite coal fields of Pennsylvania
Subtitle: and their exhaustion.
By: Read before the American association for the advancement of science, at Saratoga, September 1st, 1879, by P.W. Sheafer ...
Published: 1879
Place of publication: [n.p
Language: eng
Number of pages: 10
Subjects: Anthracite coal; Coal mines and mining
Notes: Plate printed on both sides.