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  1. A preliminary list of fossil mastodon and mammoth remains in Illinois and Iowa, by Netta C. Anderson. On the proboscidean fossils of the Pleistocene deposits in Illinois and Iowa, by Johan August Udden.
    By: Anderson, Netta C. - Udden, Johan August,
    Publication info: Rock Island, Ill.,Augustana Book Concern, printers,1905.
    Contributed by: University of California Libraries (archive.org)
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