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  1. The Permian or Upper Carboniferous flora of West Virginia and S.W. Pennsylvania,
    By: Fontaine, William Morris, - White, Israel Charles,
    Publication info: HarrisburgPublished by the Board of Commissioners for the Second Geological Survey1880
    Contributed by: Gerstein - University of Toronto (archive.org)
    Subjects: Paleobotany  Pennsylvania'  Permian  West Virginia  
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