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  1. Insects injurious to the American elm.
    By: Perkins, George H, - Vermont.
    Publication info: Montpelier,Argus,1890.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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  2. A preliminary list of the birds found in Vermont / by George H. Perkins ; assisted by Clifton D. Howe.
    By: Perkins, George H, - Howe, Clifton Durant,
    Publication info: New York :Wynkoop Hallenbeck Crawford Co.,1901.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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