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  1. By: Knechtel, A. - New York (State). Forest, Fish and Game Commission.
    Publication info: Albany, J. B. Lyon company, state printers, 1907
    Holding Institution: Library of Congress
  2. By: Knechtel, A. - Canada. Forestry Branch.
    Publication info: Ottawa?, s.n, 1908?
    Holding Institution: Canadiana.org
  1. By: Knechtel, A.
    Type: Article
    In: The Ottawa naturalist
    Volume: 23
    Issue: 2
    Date: 1909-05
    Page Range: 25--28
    Publication Info: Ottawa, Ottawa Field-Naturalists' Club,