in many ways supplements the accounts of Lewis and Clark. His ethnological distinctions are less minute; but his remarks upon the polity, slavery, marriage, warfare, and religion of the natives west of the Rocky Mountains are worthy of attention. His skill in Indian languages, as well as long residence in the country, gave him unusual opportunity for acquiring valuable information of every sort. At the present time, when we are celebrating the close of a century after the expedition of Lewis and Clark, the reprinting of this journal of one who followed closely on their footsteps, is of peculiar importance.
As in the previous volumes of the series, Louise Phelps Kellogg, Ph. D., has given valuable assistance in the preparation of notes; and some further aid has been received from Edith Kathryn Lyle, Ph. D., and Homer C. Hockett, B. A.
Madison, Wis., July, 1904.
