continually involved in so thick a fog that an object at six or eight paces was hardly discernible. When the fog cleared up, the clouds, by their gravity, moved nearer to the surface of the earth, and on all sides surrounded the mountain to a vast distance; representing the sea, with our rock like an island in the centre of it. When this happened, we heard the horrid noises of the tempests, which then discharged themselves on Quito and the neighbouring country. We saw the lightning issue from the clouds, and heard the thunders roll far beneath us; and while the lower parts were involved in tempests of thunder and rain, we enjoyed a delightful serenity; the wind was abated, the sky clear, and the enlivening rays of the sun moderated the severity of the cold. But our circumstances were very different when the clouds arose; their thickness rendered respiration difficult; the snow and hail fell continually; and the wind returned with all its violence; so that it was impossible entirely to overcome the fears of being, together with our hut, blown down the precipice on whose edge it was built, or of being buried under it by the daily accumulation of ice and snow.
"The wind was often so violent in these regions, that its velocity dazzled the sight, while our fears were increased by the dreadful concussions of the precipice, and by the fall of enormous fragments of rocks. These crashes were the more alarming, as no other noises are heard in these deserts; and during the night our rest, which we so greatly wanted, was frequently disturbed by such sudden sounds. When the weather was any thing fair with us, and the clouds gathered about some of the other mountains which had a connexion with our observations, so that we could not make all the use we desired of this interval of good weather, we left our huts to exercise ourselves, in order to keep us warm. Sometimes we descended to some small distance; and at other times amused ourselves with rolling large frag-
