degrees; at one, in the following morning, forty-two degrees; at La Cueva, at half past four, thirty-two degrees; at the bottom of the cone, thirty-six degrees; at the top of the peak, one hour and a half after sunrise, thirty-three degrees. The descent down the cone is difficult, from its extreme rapidity, and from the fall of large stones, which loosen themselves from the beds of pumice. Having at last scrambled to the bottom, we pursued our march down the other course of the lava, that is to say, down its westerly side, having ascended its eastern. The ravines and rents in this stream of lava are deep and formidable; the descent into them is always painful and troublesome, often dangerous: in some places we let ourselves down from rock to rock. I can form no opinion why there should be these strange irregularities in the surface of this lava; in places it resembles what sailors term the trough of the sea, and I can compare it to nothing but as if the sea in a storm, had by some force become on a sudden stationary, the waves retaining their swell. As we again approached La Cueva, we came to a singular steep valley, the depth of which, from its two sides, can not be less than one hundred to one hundred and fifty feet, the lava lying in broken ridges one upon the other, similar to the masses of granite rock that time and decay have tumbled down from the top of the Alps; and, except from the scoriæ, or what Milton calls ‘the fiery surge,’ they in no degree bear the marks of having rolled as a stream of liquid matter. “We descended the pumice hill with great rapidity, almost at a run, and arrived at La Estancia in little more than two hours. We then mounted our mules, and following the track by which we had ascended the preceding day, we reached, about four o’clock, the country-house from which we had started.” The first eruption of which there is any distinct account, occurred on the twenty-fourth of December, 1704, when twenty-nine shocks of an earthquake were distinctly felt. On the thirty-first a great light was observed on Manja, toward the White mountains. Here the earth opened, and two volcanoes were formed, which threw up such heaps of stones as to raise two considerable mountains: the combustible matter, which still continued to be thrown up, kindled above fifty fires in the vicinity. The whole country for three leagues round was in flames, which were increased by another volcano opening by at least thirty different vents within the circumference of half a mile. On the second of February following, another volcano broke out in the town of Guimar, swallowing up a large church.