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  1. A preliminary list of the birds found in Vermont / by George H. Perkins ; assisted by Clifton D. Howe.
    By: Perkins, George H. - Howe, Clifton D.
    Publication info: Albany :Wynkoop Hallenbeck Crawford Co.,1901.
    Contributed by: University of California Libraries (archive.org)
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  2. The reforestation of sand plains in Vermont ...
    By: Howe, Clifton D.
    Publication info: Chicago,1910.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  3. Trent watershed survey, a reconnaissance
    By: Canada. - Fernow, B. E. - Howe, Clifton D. - White, James Herbert.
    Publication info: Toronto,Printed by the Bryant press,1913.
    Contributed by: Cornell University Library
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