System of Nature, vol 2

t our own reflection on what passes under our eyes be sufficient to convince us, that all parts of our globe have been, and following the course of things, will necessarily be again violently agitated, overturned, changed, overflowed, in a state of conflagration? Vast continents have been inundated, seas breaking their limits have usurped the dominion of the earth; at length retiring, these waters have left striking, proofs of their presence, by the marine vestiges of shells, skeletons of sea fish, &c. which the attentive observer meets with at every step, in the bowels of those fertile countries we now inhabit--subterraneous fires have opened to themselves the most frightful volcanoes, whose craters frequently issue destruction on every side. In short, the elements unloosed, have at various times, disputed among themselves the empire of our globe; this exhibits evidence of the fact, by those vast heaps of wreck, those stupendous ruins spread over its surface. What, then, must have been the fears of manki