On the following day we passed a number of prairie dog villages, some of them extending from two to three miles along the river. Though much in want of game, most of our exertions to take these animals were without success. A number were killed, but we were able to possess ourselves of no more than two of them. These we found to be in good condition and well flavoured. Their flesh nearly resembles that of the ground hog, or woodchuck (Arctomys Marylandica.)

In some small ponds near the Platte we saw the common species of pond weed (Potamogeton natans and P. fluitans. Ph.) also the Utricularia longirostris, of Leconte, and an interesting species of Myriophillum.[95]

By observations at morning and evening the magnetic variation was found thirteen and an half degrees{143} east. In the middle of the day the heat was excessive, and we were under the necessity of halting at a place where no shade could be found to shelter us from the scorching rays of the sun, except what was afforded by our tents, which were set up for this purpose. Here we remained until 4 P. M. when we resumed our journey. We crossed towards evening a small creek, three miles beyond which we arrived at an old Indian camp, where we halted for the night. We had not been long here before a tremendous storm of wind assailed our tents with such violence, that it was only by stationing ourselves outside, and holding the margin to the ground, that we were able to keep them standing.

Two of the hunters who had been sent out during the afternoon, returned to camp late in the evening, bringing in a buck antelope, a highly acceptable acquisition to us, as we had been for some time restricted to short commons. The flesh we found palatable, being very similar in every respect to that of the common deer.

We had proceeded but a few miles from our camp, on the following morning, when we perceived a number of antelopes, at a little distance in the prairie. Being on the windward side of the party, they were not able, by their sense of smelling, to inform themselves of the nature of the danger which was approaching. One of them, leaving his companions, came so near our line as to be within the reach of a rifle ball, and was killed by Lieutenant Swift.

The antelope possesses an unconquerable inquisitiveness, of which the hunters often take advantage, to compass the destruction of the animal. The attempt to approach immediately towards them in the open plain, where they are always found, rarely proves successful. Instead of this, the hunter, getting as near the animal as is practicable, without exciting alarm, conceals himself by lying down, then fixing a handkerchief or cap upon the end of his {144} ramrod, continues to wave it, still remaining concealed. The animal, after a long contest between curiosity and fear, at length approaches near enough to become a sacrifice to the former.[96]

In the afternoon a single bison was seen at the distance of several miles, being the second since we had left the Pawnee villages, which were now about a hundred miles distant, and we were beginning to fear that the representations of the Indians, in relation to the difficulty of procuring game to subsist so large a party as ours, would prove true. We found, however, that every part of the country, which we had recently passed, had, at no distant period, been occupied by innumerable herds of bisons. Their tracks and dung were still to be seen in vast numbers; and the surface of the ground was strewed with skulls and skeletons, which were yet undecayed.

At 4 o'clock P. M. we arrived at an old Indian encampment, opposite an island, on which was some wood, and perceiving that none would be met with for many miles a-head, we determined to halt here for the night.

The 18th, being Sunday, we remained in camp. This indulgence was not only highly acceptable to the soldiers and men who accompanied us, they being much harassed and fatigued by their exertions during the week, but was necessary for our horses, which, not being in good condition when we left the Missouri, were perceptibly failing under the laborious services they were made to perform. At our nightly encampments we found it necessary to confine them, as we had not always a plentiful supply of grass in the immediate vicinity of our camp, and if left at large they would wander in search of better pasture, and occasion us great trouble to collect them again in the morning. Accordingly, long ropes had been provided, {145} which were carried constantly on the necks of the horses, and by these they were made fast during the night to stakes driven into the ground. After having eaten all the grass within his reach, the horse was removed to another place, and this was done several times during the night, by a guard kept constantly on duty, both for the performance of this service, and also to give timely notice in case of the approach of Indians to the camp. Notwithstanding this care, on our part, our horses were sometimes but poorly fed, as we were often compelled to encamp in places where little grass was to be found. When we remained in camp during the day, they were suffered to range more at liberty, a watch being kept out to prevent their wandering too great a distance. Notwithstanding the sabbath was devoted to the refreshment of our horses, and the relaxation of the men who accompanied us, some attention was given to the great objects of the expedition. Astronomical observations for the correction of our time-piece, and for other purposes, were made. At Engineer Cantonment we had furnished ourselves with portfolios of paper, to receive specimens of such plants as we might collect; but we found that the precautions which had been used to protect these from the weather had been insufficient, some of our collections being in part wet, and others having been made during the heavy rains, which fell before we reached the Pawnee villages, required much attention. The sabbath also afforded us an opportunity to devote a little attention to the important objects of personal cleanliness and comfort. The plain about our encampment was strewed with the bones of the bison, and other animals; and among the rest we distinguished some of men. We picked up a number of human skulls, one of which we thought it no sacrilege to compliment with a place upon one of our pack-horses. Our guides could give us no satisfactory information of the time and manner in which the several persons, {146} to whom these bones formerly belonged, had been compelled to lay them down in this place; it is certain, however, that at no very distant period, a battle had been fought, or a massacre committed, on this spot.

We had now arrived at a point about two hundred miles distant from the confluence of the Platte and Missouri, yet the character of the former river was but little changed. It was still from one to three miles in breadth, containing numerous islands, covered with a scanty growth of cotton-wood willows, the amorpha fruticosa, and other shrubs.