mined to pitch our tent in it for a few days. Our intention was to proceed twenty leagues further, to see the volcano of Jorullo; but as the road is described to us as being entirely devoid of shade, and the heat almost insupportable—with various other difficulties and drawbacks,—we have been induced though with great regret, to abandon the undertaking; which it is as tantalizing to do, as it is to reflect that yesterday we were but a short distance from a hill which is but thirty leagues from the Pacific Ocean.
In 1813, M. de Humboldt and M. Bonpland, ascended to the crater of this burning mountain, which was formed in September, 1759. Its birth was announced by earthquakes, which put to flight all the inhabitants of the neighboring villages; and three months after, a terrible eruption burst forth, which filled all the inhabitants with astonishment and terror, and which Humboldt considers one of the most extraordinary physical revolutions that ever took place on the surface of the globe.
Flames issued from the earth for the space of more than a square league. Masses of burning rock were thrown to an immense height, and through a thick cloud of ashes illuminated by the volcanic fire, the whitened crust of the earth was seen gradually swelling up. The ashes even covered the roofs of the houses at Querétaro, forty-eight leagues distance! and the rivers of San Andres and Cuitumba sank into the burning masses. The flames were seen from Pascuaro; and from the hills of Agua-Zarca was beheld the birth of this volcanic mountain, the burning
