Scope and Contents From the Collection: This collection contains three letters (1873–1874) and part of a fourth (n.d.), all from George Engelmann in St. Louis to Girard, concerning the flora of Camp Apache, Arizona, where Lt. Girard was serving as a U.S. Army surgeon. Engelmann asks questions about the flora, gives information and collects advice, and refers to various botanical works. Plants referenced include Agave, Cactaceae, Juniperus, ...