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  1. The Lower Siluric shales of the Mohawk valley, by Rudolf Ruedemann.
    By: Ruedemann, Rudolf,
    Publication info: Albany,University of the State of New York,1912.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Geology  Geology, Stratigraphic  Mohawk Valley  New York (State)  Ordovician  Paleontology  
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