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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Dawson, J. W., (John William), - Royal Society of Canada.
    Publication info: S.l, s.n, 1889?
    Holding Institution: Canadiana.org
    Subjects: Alberta  Bow River Valley  Fungi, Fossil  Mackenzie River Valley  Northwest Territories  Paleobotany  Trees, Fossil