The baggage of the Lewis and Clark Expedition contained a small collection of potentially useful reference works including a four-volume Dictionary of Arts and Sciences (1754-55); John Miller's Linnaeus (1779, 1789); Richard Kirwan's Elements of Mineralogy (1794); several volumes pertaining to celestial navigation; Benjamin Smith Barton's Elements of Botany (1803); Alexander Mackenzie's Voyages from Montreal (1802); and Antoine du Pratz's History of Louisiana (1774). This is the story of the last book named.

Funded in part by a grant from the National Park Service Challenge-Cost Share Program