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  1. The Lewis and Clark forest reserve, Montana,
    By: Ayres, H. B. (Horace Beemer),
    Publication info: Washington,U.S. Govt. Print. Off.,1900.
    Holding Institution: Library of Congress
    BHL Collections: Library of Congress
    View Book
  2. Timber conditions in the pine region of Minnesota,
    By: Ayres, H. B. (Horace Beemer),
    Publication info: Washington,Govt. print. off.,1900.
    Holding Institution: Library of Congress
    BHL Collections: Library of Congress
    View Book