Copyright © 2001 State Historical Society of Iowa. This article is posted here for personal use, not for redistribution.
"The Journals of the Lewis and Clark Expedition. Volume 12, Herbarium of the Lewis and Clark Expedition." The Annals of Iowa 60 (2001), 93-93.
Available at: http://ir.uiowa.edu/annals-of-iowa/vol60/iss1/23