Report of progress in the Juniata district on the fossil iron ore beds of middle Pennsylvania
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb. 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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