Report of progress in the Juniata district on the fossil iron ore beds of middle Pennsylvania, by John H. Dewees, with a report of the Aughwick Valley and East Broad Top district, by C. A. Ashburner.
Material type:
TextSeries: Report of progress (Geological Survey of Pennsylvania) ; F.Publication details: Harrisburg, Published by the Board of Commissioners for the Second Geological Survey, 1878.Description: Fxlix, F305 p. front., illus., plates (Part fold.) charts (part fold.) diagrs. 23 cmSubject(s): LOC classification: - QE157 .A16 vol. F
At head of title: Geological survey of Pennsylvania, 1874-75.
Charts and diagrams partly in pockets.
Appendices: A. Section of the Palœozoic rocks in Blair county, by F. Platt and R.H. Sanders.--B. A measured section of the Palæozic rocks between Lock Haven and Farrandsville, by H.M. Chance.--C. Catalog of specimens collected by Mr. Ashburner.--D. Railway and other levels above tide mentioned in this report.
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