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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Arnold, W. W.
    Type: Article
    In: The Auk
    Volume: 29
    Date: 1912
    Page Range: 113--113
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  2. By: Arnold, W. W.
    Type: Article
    In: The Auk
    Volume: 36
    Date: 1919
    Page Range: 147--148
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-