|L. and C.: History of the Expedition under the Command of Lewis and Clark. Ed. by Elliott Coues. 4 vols. New York, 1893. In order to facilitate reference to other editions of the history of the expedition of Lewis and Clark, the date of each entry quoted from their journals is given in the footnotes.|
|Z. M. Pike, Expeditions: The Expeditions of Zebulon Montgomery Pike. Ed. by Elliott Coues. 3 vols. New York, 1895.|
|J. C. Frémont, Report: Report of the Exploring Expedition to the Rocky Mountains in the year 1842, and to Oregon and North California in the years 1843-44 (28th Congress, 2d Session, Senate, 174). Washington, 1845.|
|J. C. Frémont, Geog. Memo.: Geographical Memoir upon Upper California, in illustration of his Map of Oregon and California (30th Congress, 1st Session, Senate, 148). Washington, 1848.|
|E.W.T.: Early Western Travels, 1748- 1846. A Series of Annotated Reprints of some of the best and rarest contemporary volumes of travel, descriptive of the Aborigines and Social and Economic Conditions in the Middle and Far West during the Period of Early American Settlement. Ed. with notes by Reuben Gold Thwaites. Cleveland, 1904-6.|
Full bibliographical references of all books quoted are included in the Bibliography at the end of the book.