Summary Narrative of an Exploratory Expedition to the Sources of the Mississippi River, in 1820 / Resumed and Completed, by the Discovery of its Origin in Itasca Lake, in 1832

by Henry Rowe Schoolcraft

4. BOTANY.

XI.

A descriptive list of the plants collected on the expedition, drawn up by Dr. John Torrey, has been published in the fourth volume of the American Journal of Science. References to this standard work may be conveniently made by botanists.