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  1. By: Watson, Sereno, - Rothrock, Joseph T., - United States. Geographical and Geological Explorations and Surveys West of the 100th Meridian.
    Publication info: Washington [D.C.], G.P.O, 1874
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Herbarium
  2. By: United States. Army. Corps of Topographical Engineers - United States. Department of Agriculture. - United States. Geographical and Geological Explorations and Surveys West of the 100th Meridian. - Emory, William H.
    Publication info: Washington, Wendell and Van Benthuysen, printer, 1848
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Herbarium