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	1.	Special report on the petroleum of Pennsylvania, its production, transportation, manufacture and statistics. By Henry E. Wrigley ... To which are added a map and profile of a line of levels through Butler, Armstrong and Clarion counties. By D. Jones Jucas. And also a map and a profile of line of levels along Slippery Rock creek. By J. P. Lesley. by Wrigley, Henry E Lucas, D. Jones Lesley, J. Peter, 1819-1903 Series: Report of progress (Geological Survey of Pennsylvania) ; J. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Harrisburg, Pub. by the Board of Commissioners for the Second Geological Survey, 1875 Availability: No items available. Add to cart (remove)
	2.	A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Compiled ... by J.P. Lesley ... by Lesley, J. Peter, 1819-1903 Pennsylvania. Board of Commissioners for the Second Geological Survey Series: Report of progress (Geological Survey of Pennsylvania) ; P4. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Harrisburg, Board of Commissioners for the Geological Survey, 1889-90 Availability: No items available. Add to cart (remove)

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