When we have seen with our own eyes a mountain advancing into a plain--that is, an immense rock detached from that mountain, and covering the fields, an entire castle buried in the earth, or a swallowed-up river bursting from below, indubitable marks of an immense mass of water having once inundated a country now inhabited, and so many traces of other revolutions, we are even more disposed to believe in the great changes that have altered the face of the world than a Parisian lady who knows that the square in which her house stands was formerly a cultivated field, but a lady of Naples who has seen the ruins of Herculaneum underground is still less enthralled by the prejudice which leads us to believe that everything has always been as it now is. Was there a great burning of the world in the time of Phaethon? Nothing is more likely, but this catastrophe was no more caused by the ambition of Phaethon or the anger of Jupiter the Thunderer than at Lisbon, in 1755, the Divine vengeance was drawn down, the subterraneous fires kindled, and half the city destroyed by the fires so often lighted there by the inquisition--besides, we know that Mequinez, Tetuan and considerable hordes of Arabs have been treated even worse than Lisbon, though they had no inquisition. The island of St. Domingo, entirely devastated not long ago, had no more displeased the Great Being than the island of Corsica; all is subject to eternal physical laws. Sulphur, bitumen, nitre, and iron, enclosed within the bowels of the earth have overturned many a city, opened many a gulf, and we are constantly liable to these accidents attached to the way in which this globe is put together, just as, in many countries during winter, we are exposed to the attacks of famishing wolves and tigers. If fire, which Heraclitus believed to be the principle of all, has altered the face of a part of the earth, Thales's first principle, water, has operated as great changes. One-half of America is still inundated by the ancient overflowings of the Maranon, Rio de la Plata, the St. Lawrence, the Mississippi, and all the rivers perpetually swelled by the eternal snows of the highest mountains in the world, stretching from one end of that continent to the other. These accumulated floods have almost everywhere produced vast marshes. The neighboring lands have become uninhabitable, and the earth, which the hands of man should have made fruitful, has produced only pestilence. The same thing happened in China and in Egypt: a multitude of ages were necessary to dig canals and dry the lands. Add to these lengthened disasters the irruptions of the sea, the lands it has invaded and deserted, the islands it has detached from the continent and you will find that from east to west, from Japan to Mount Atlas, it has devastated more than eighty thousand square leagues.