The bulk of Chimborazo is so enormous, that the part which the eye embraces at once, near the limit of the snows, is twenty-two thousand, nine hundred and sixty-eight feet, or four miles and a third in breadth. The extreme rarity of the strata of air across which the summits of the Andes are seen, contributes greatly to the splendor of the snow and the magical effect of its reflection. Under the tropics, at a hight of sixteen thousand, four hundred feet, or upward of three miles, the azure vault of the heavens appears of an indigo tint; while, in so pure and transparent an atmosphere, the outlines of the mountains seem to detach themselves from the sky, and produce an effect at once sublime, awful, and profoundly impressive.
With the exception of the loftiest of the Himalaya, in Asia, Chimborazo is the highest known mountain in the world. Humboldt, Bonpland, and Montufar, were persevering enough to approach within one thousand, six hundred feet of the summit of this mighty king of mountains. Being aided in their ascent by a train of volcanic rocks, destitute of snow, they thus attained the amazing hight of nearly four miles above the level of the sea; and the former of these naturalists is persuaded that they might have reached the highest summit, had it not been for the intervention of a great crevice, or gap, which they were unable to cross. They were, therefore, obliged to descend, after experiencing great inconveniences and many unpleasant sensations. For three or four days, even after their return into the plain, they were not free from sickness, and an uncomfortable feeling, owing, as they suppose, to the vast proportion of oxygen in the atmosphere above. Long before they reached the above surprising hight, they had been abandoned by their guides, the Indians, who had taken alarm and were fearful of their lives. So great was the fall of snow on their return, that they could scarcely recognize each other, and they all suffered dreadfully from the intenseness of the cold.
A great number of Spaniards formerly perished in crossing the vast and dangerous deserts which lie on the declivity of Chimborazo; being now, however, better acquainted with them, such misfortunes seldom occur, especially as very few take this route, unless there be a prospect of calm and serene weather.
COTOPAXI.
This mountain is the loftiest of those volcanoes of the Andes which, at recent epochs, have undergone eruptions. Notwithstanding it lies near the equator, its summits are covered with perpetual snows. The absolute hight of Cotopaxi is eighteen thousand, eight hundred and seventy-six feet, or three miles and a half; consequently it is two thousand, six hundred and twenty-two feet, or half a mile, higher than Vesuvius would be, were that mountain placed on the top of the peak of Teneriffe! Cotopaxi is the most mischievous of the volcanoes in the vicinity of Quito, and its explosions are the most frequent and disastrous. The masses of scoriæ, and the pieces of rock, thrown out of this volcano, cover a surface of several square leagues, and would form, were they heaped together, a prodigious mountain. In 1738, the flames of Cotopaxi rose three thousand feet, or upward of half a mile, above the brink of the crater. In 1744, the roarings of this volcano were heard at the distance of six hundred miles. On the fourth of April, 1768, the quantity of ashes ejected at the mouth of Cotopaxi was so great, that it was dark till three in the afternoon. The explosion which took place in 1803, was preceded by the sudden melting of the snows which covered the mountain. For twenty years before no smoke or vapor, that could be perceived, had issued from the crater; but in a single night the subterraneous fires became so active, that at sunrise the external walls of the cone, heated to a very considerable temperature, appeared naked, and of the dark color which is peculiar to vitrified scoriæ. “At the port of Guyaquil,” observes Humboldt, “fifty-two leagues distant in a straight line from the crater, we heard, day and night, the noise of this volcano, like continued discharges of a battery; and we distinguished these tremendous sounds even on the Pacific ocean.”
The form of Cotopaxi is the most beautiful and regular of the colossal summits of the high Andes. It is a perfect cone, which, covered with a perpetual layer of snow, shines with dazzling splendor at the setting of the sun, and detaches itself in the most picturesque manner from the azure vault above. This covering of snow conceals from the eye of the observer even the smallest inequalities of the soil; no point of rock, no stony mass, penetrating this coat of ice, or breaking the regularity of the figure of the cone.
PICHINCHA.
Though celebrated for its great hight, Pichincha is three thousand, eight hundred and forty-nine feet, or three-fourths of a mile, lower than the perpendicular elevation of Cotopaxi. It was formerly a volcano; but the mouth or crater on one of its sides is now covered with sand or calcined matter, so that at present neither smoke nor ashes issue from it.
When it was ascended by Don George Juan and Don Antonio de Ulloa, for the purpose of their astronomical observations, they found the cold on the top of this mountain extremely intense, the wind very violent, and the fog, or, in other words, the cloud, so thick, that objects at the distance of six or eight paces were scarcely discernible. On the air becoming clear, by the clouds descending nearer the earth, in such a manner as to surround the mountain on all sides to a vast distance, these clouds afforded a lively representation of the sea, in which the top of the mountain seemed to stand, like an island in the center.
“With aspect mild, and elevated eye,