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  1. By: Nelson, Edward M.
    Publication info: Chicago, Ill, Chicago Natural History Museum, 1955
    Holding Institution: University Library, University of Illinois Urbana Champaign
  2. By: Nelson, Edward M.
    Publication info: [Chicago], Chicago Natural History Museum, 1961
    Holding Institution: University Library, University of Illinois Urbana Champaign
  1. By: Nelson, Edward M.
    Type: Article
    In: Bulletin
    Volume: 27
    Issue: 6
    Date: 1956
    Page Range: 6--8
    Publication Info: [Chicago, Ill.], The Museum, [1944-1966]