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Show 222 THE WHITE CASTLES. blackbirds, flycatchers, and the Fnngilla grammaca, and roused a large covey of the prairie cock, which flew up before us with loud clapping of their wings, but which, for want of a good pointer, we were unable to find again. We took nothing but a hare and an owl, with some birds which had assembled in great numbers to teaze the poor light-shunning tyrant of evening. Mr. Bodmer sketched some more of the remarkable mountain tops. (Plate XXXV. Figs. 16 and 18.) Near that marked Fig. 16, some of our hunters returned with two black-tailed deer and a young fawn ; and, soon afterwards, two buffalo bulls were killed, a great part of the flesh of which we brought away, because we were approaching the part of the country called Mauvaises Terres, where we could not expect to find much large game. In the afternoon we saw some Indian huts under high poplars on the bank; and, on the northern bank, sketches were taken of singular mountain tops. In general, the bare grey masses of the eminences on the bank were so singularly formed that it was impossible not to wish that an able geologist might make a minute investigation of the chain. Their tops, like towers, pillars, &c, were contrasted with the clear blue sky, and the sun caused them to cast deep shadows. As we were sailing with a fair wind, I was obliged to submit to the necessity of rapidly passing these highly interesting scenes. The mountains continued to increase in height; they were more and more naked and sterile; their colour was whitish-grey, grey-brown, often spotted with white, the upper part disposed in horizontal strata, or in narrow stripes; and some isolated summits rose in the most grotesque forms, and the general appearance reminded me of the calcareous mountains of Appenzell, in Switzerland. In the steep wall of the south bank we saw, at a great height, the antlers of a stag projecting, which must have been imbedded in the alluvium, which was now washed away by the river. On these rude, naked mountains, the wild mountain sheep, called the bighorn, or grossecorne, becomes more and more numerous the further you proceed up the river. Our towers killed, in this part, a large rattlesnake, which had just caught some kind of rat, probably a goffer, and half devoured it. A thunder-storm, with high wind, suddenly caused our, vessel to be in great danger; but the same wind which had at first thrown us back, became all at once very favourable when we reached a turn in the river, and sailed, for some time, rapidly upwards. This brought us to a remarkable place, where we thought that we saw before us, two white mountain castles. On the mountain of the south bank, there was a thick, snow-white layer, a far-extended stratum of a white sand-stone, which had been partly acted upon by the waters. At the end where it is exposed, being intersected by the valley, two high pieces, in the shape of buildings, had remained standing, and upon them lay remains of a more compact, yellowish-red, thinner stratum of sand-stone, which formed the roofs of the united building. On the facade of the whole building, there were small perpendicular slits, which appeared to be so many windows. These singular natural formations, when seen from a distance, so perfectly resembled buildings raised by art, that we were deceived by them, till we were assured of our error. We agreed with |