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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Barton, A. J. - Allen, William B.
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 46
    Issue: 7
    Date: 1961-09-25
    Page Range: 83--87
    Publication Info: New York,
  2. By: Barton, A. J.
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 69
    Date: 1956
    Page Range: 71--82
    Publication Info: Washington, Biological Society of Washington,