Books by Leonidas Chalmers Glenn:
Books in the extended shelves:
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Glenn, Leonidas Chalmers, 1871-: Devonic and Carbonic formations of southwestern New York (University of the state of New York, 1903), also by John Mason Clarke and Charles Butts (page images at HathiTrust)
Find more by Leonidas Chalmers Glenn at your library, or elsewhere.