But as we now supposed ourselves to have almost reached the boundary of this region, and they again expressed their anxiety to return to their village, in order to prepare for their autumnal hunt, we no longer attempted to induce their further delay. They departed after breakfast, on a pathless journey of about three hundred miles, the supposed distance from this point to the Pawnee villages of the Platte, apparently well pleased with the treatment they had received, and expressing a desire again to accompany us, should we again ascend the Missouri. We cannot take leave of them, without expressing our entire approbation of their conduct and deportment, during our arduous journey; Bijeau, particularly, was faithful, active, industrious, and communicative. Besides the duties of guide and interpreter, he occasionally and frequently volunteered his services as hunter, butcher, cook, veterinarian, &c., and pointed out various little services, tending to our comfort and security, which he performed with pleasure and alacrity, and which no other than one long habituated to this mode of life would have devised. During leisure intervals, he had communicated an historical narrative of his life and {67} adventures, more particularly in as far as they were relative to the country which we have been exploring. He particularized the adventures of Choteau and Demun's hunting and trading party; their success in beaver hunting, the considerable quantity of merchandize they took with them, their adventures with the natives, and the singular circumstances attendant on their capture by the Mexican Spaniards, and the transfer of the merchandize to Santa Fé, without however venturing to express any conjectures relative to the latter transaction.[104] Much still more important information was derived from him concerning the manners and habits of these mountain Indians, their history, affinities, and migrations. A copious vocabulary of words of the Pawnee language was obtained from Ledoux, together with an account of the manners and habits of that nation. All these, however, composed a part of the manuscripts of Mr. Say, that were subsequently carried off by deserters from our camp. Travelled this day twenty-seven miles. The soil is becoming in many districts more exclusively sandy; the finer particles of which, driven by the wind, have formed numerous large hillocks on the opposite side of the river, precisely resembling those which are accumulated on our sea-coast. On the northern side, or that which we are traversing, the prairie still offers its unvaried flatness and cheerless barrenness, so that during a portion of the day's journey not a solitary bush, even on the river bank, relieved the monotonous scene before us.