"Analyses of coal, cannel, coke, clay, limestone, and ore, from Butler and Beaver counties, Pa., by Andrew S. McCreath": p. Q 275-Q 283.At head of title: Second geological survey of Pennsylvania: 1875.Mode of access: Internet
Advance chapter from Bulletin no. 381, Contributions to economic geology, 1908, Part II.Includes bib...
At head of title: Second geological survey of Pennsylvania: Report of progress G6. 1881.Folded plate...
"Third paper on groups of representative mines in Pittsburgh coal bed in Western Pennsylvania."Mode ...
At head of title: Second geological survey of Pennsylvania. Report of progress. F3 1888-1889.Mode of...
At head of title: Second geological survey of Pennsylvania: Report of progress, 1879. QQQQ.Mode of a...
At head of title: Second geological survey of Pennsylvania. Report of progress in 1878. QQQ.Mode of ...
Appendix: Extracts from H. D. Rogers' Memoir on the coal formation of Pennsylvania ... of the final ...
Appendices: A. Mine laws.--B. A glossary of mining terms.--C. Production and distribution of anthrac...
At head of title: Second geological survey of Pennsylvania: Report of progress in 1879. VV.Mode of a...
Vol. II, pt. I-II, paged continuously.Vol. 2 has title: The geology of Pennsylvania; a government su...
Mode of access: Internet.Continued by: Pennsylvania. Inspectors of Coal Mines. Reports of the Inspec...
Folded plate and maps in pockets.pt. I. Eastern Allegheny county and Fayette and West-moreland count...
Reprinted from Transactions of the American institute of mining and metallurgical engineers, v. 14.c...
Extract from the 14th annual report of the director of the U. S. Geological survey, 1892-93, pt. II....
"With a summary of coal production, etc., prepared by the Bureau of Industrial Statistics, Departmen...
Advance chapter from Bulletin no. 381, Contributions to economic geology, 1908, Part II.Includes bib...
At head of title: Second geological survey of Pennsylvania: Report of progress G6. 1881.Folded plate...
"Third paper on groups of representative mines in Pittsburgh coal bed in Western Pennsylvania."Mode ...
At head of title: Second geological survey of Pennsylvania. Report of progress. F3 1888-1889.Mode of...
At head of title: Second geological survey of Pennsylvania: Report of progress, 1879. QQQQ.Mode of a...
At head of title: Second geological survey of Pennsylvania. Report of progress in 1878. QQQ.Mode of ...
Appendix: Extracts from H. D. Rogers' Memoir on the coal formation of Pennsylvania ... of the final ...
Appendices: A. Mine laws.--B. A glossary of mining terms.--C. Production and distribution of anthrac...
At head of title: Second geological survey of Pennsylvania: Report of progress in 1879. VV.Mode of a...
Vol. II, pt. I-II, paged continuously.Vol. 2 has title: The geology of Pennsylvania; a government su...
Mode of access: Internet.Continued by: Pennsylvania. Inspectors of Coal Mines. Reports of the Inspec...
Folded plate and maps in pockets.pt. I. Eastern Allegheny county and Fayette and West-moreland count...
Reprinted from Transactions of the American institute of mining and metallurgical engineers, v. 14.c...
Extract from the 14th annual report of the director of the U. S. Geological survey, 1892-93, pt. II....
"With a summary of coal production, etc., prepared by the Bureau of Industrial Statistics, Departmen...
Advance chapter from Bulletin no. 381, Contributions to economic geology, 1908, Part II.Includes bib...
At head of title: Second geological survey of Pennsylvania: Report of progress G6. 1881.Folded plate...
"Third paper on groups of representative mines in Pittsburgh coal bed in Western Pennsylvania."Mode ...