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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Gill, Douglas E.
    Publication info: 1964
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: BHL Field Notes Project | Smithsonian Field Books collection
  2. By: Gill, Douglas E.
    Publication info: 1964
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection