Early in the morning of September 16th having reached a convenient spot on the south side of the river, we encamped just above a small creek which we called Corvus having killed an animal of that genus near it. Our camp is in a beautiful plain with timber thinly scattered for three-quarters of a mile, consisting chiefly of elm, cottonwood, some ash of an indifferent quality, and a considerable quantity of a small species of white oak. This tree seldom rises higher than thirty feet and branches very much,--the bark is rough, thick and of a light colour; the leaves small, deeply indented, and of a pale green; the cup which contains the acorn is fringed on the edges; the acorn itself which grows in great profusion is of an excellent flavor and has none of the roughness which most other acorns possess: they are now falling and have probably attracted the number of deer which we have seen at this place. The ground having been recently burned by the Indians is covered with young green grass and in the neighbourhood are great quantities of fine plums. We killed a few deer for the sake of their skins which we wanted to cover the pirogues, the meat being too poor for food. About a quarter of a mile behind our camp, at an elevation of twenty feet a plain extends parallel with the river for three miles. Here we saw a grove of plum trees loaded with fruit, now ripe and differing in nothing from those of the Atlantic States except that the tree is smaller and more thickly set. The ground of the plain is occupied by the burrows of multitudes of barking squirrels, who entice hither the wolves of a small kind, hawks and polecats. This plain is intersected nearly in its whole extent by deep ravines and steep irregular rising grounds of from one to two hundred feet. On ascending one of these we saw a second high level plain stretching to the south as far as the eye could reach. To the westward a high range of hills about twenty miles distant. All around the country had been recently burned and a young green grass about four inches high covered the ground which was enlivened by herds of antelopes and buffalo; the last of which were in such multitudes that we cannot exaggerate in saying that at a single glance we saw three thousand of them before us. Of all the animals we had seen the antelope seems to possess the most wonderful fleetness. Shy and timorous they generally repose only on the ridges which command a view of all the approaches of an enemy;--the acuteness of their sight distinguishes the most distant danger: the delicate sensibility of their smell defeats concealment; and when alarmed their rapid career seems more like the flight of birds than the movements of a quadruped. After many unsuccessful attempts Captain Lewis at last by winding around the ridges approached a party of seven which were on an eminence towards which the wind was unfortunately blowing. The only male of the party frequently encircled the summit of