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] [96] See Bradbury, p. 113.—JAMES. _Comment by Ed._ See reprint in volume v of our series, p. 123. 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.