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  1. The Naturalist.
    By: Yorkshire Naturalists' Union.
    Publication info: [Doncaster :Yorkshire Naturalists' Union],1874-
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
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  2. The transactions of the Yorkshire Naturalists' Union.
    By: Yorkshire Naturalists' Union.
    Publication info: Leeds [etc.]
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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