The historical account informs us that ‘the waters prevailed exceedingly upon the earth; and all the high hills that were under the whole heaven were covered. Fifteen cubits upward did the waters prevail; and the mountains were covered.’ But Europe possesses mountains rising to a height of more than 10,000 cubits or 15,000 feet—one peak in Asia is 29,000 feet above the level of the sea—so that, on the common interpretation, the waters of the flood must have risen to a thickness above the ordinary sea-level of nearly 30,000 feet over the whole of the globe. But, on this supposition, the narrative is not only bewildering and morally impossible, but positively untruthful, for it declares the physical means employed in the production of the flood to be the fountains of the great deep and the rain from heaven—means entirely sufficient to produce a partial flood over a limited area, but utterly and ludicrously inadequate to produce a total deluge enveloping ‘all the high hills under the whole heaven.’ The notion is self-contradictory that the ocean can be employed to raise its own level, or that its general height can be increased by the rain which it is its own part to supply. Nor is there any indication afforded that a supernatural supply of water was added to our planet, to the extent of several hundred millions of cubic miles of liquid, which would have been required for the purpose of drowning the Caucasus and the Alps and Teneriffe and Popocatapetl and Chimilari. We must consider also the difficulty of breathing, and the intense cold that would have been experienced at that stupendous altitude. There is the old question of space in the ark; there is the old question of the food-supply, sufficient and appropriate, to be stored and sorted for its various occupants, carnivorous and herbivorous, beasts of prey, carrion-birds, and amphibious monsters. But what are these compared with the question how life could be sustained in the bitter freezing atmosphere, thousands of feet above the line of perpetual snow, by creatures accustomed to the lowlands of the tropics? Supposing, however, the atmosphere to have been completely warmed by the rise of the ocean, or even if the air within the ark was kept warm by its enormous crowd of denizens, we are confronted by a new difficulty, one that might seem laughable and improper to mention but for its vast and pressing importance in our own days, thwarting the physician, perplexing the statesman, baffling the chemist and the engineer. To this supposed epitome of the world’s inhabitants, shut up for months within the ark, who were the scavengers?