The crocodile is very ugly, having no proportion between his length and thickness; he hath short feet, a wide mouth, with two rows of sharp teeth, standing wide from each other, a brown skin so fortified with scales, even to his nose, that a musket-ball cannot penetrate it. His sight is extremely quick, and at a great distance. In the water he is daring and fierce, and will seize on any that are so unfortunate as to be found by him bathing, who, if they escape with life, are almost sure to leave some limb in his mouth. Neither I, nor any with whom I have conversed about the crocodile, have ever seen him weep, and therefore I take the liberty of ranking all that hath been told us of his tears amongst the fables which are only proper to amuse children. The hippopotamus, or river-horse, grazes upon the land and browses on the shrubs, yet is no less dangerous than the crocodile. He is the size of an ox, of a brown colour without any hair, his tail is short, his neck long, and his head of an enormous bigness; his eyes are small, his mouth wide, with teeth half a foot long; he hath two tusks like those of a wild boar, but larger; his legs are short, and his feet part into four toes. It is easy to observe from this description that he hath no resemblance of a horse, and indeed nothing could give occasion to the name but some likeness in his ears, and his neighing and snorting like a horse when he is provoked or raises his head out of water. His hide is so hard that a musket fired close to him can only make a slight impression, and the best tempered lances pushed forcibly against him are either blunted or shivered, unless the assailant has the skill to make his thrust at certain parts which are more tender. There is great danger in meeting him, and the best way is, upon such an accident, to step aside and let him pass by. The flesh of this animal doth not differ from that of a cow, except that it is blacker and harder to digest. The ignorance which we have hitherto been in of the original of the Nile hath given many authors an opportunity of presenting us very gravely with their various systems and conjectures about the nature of its waters, and the reason of its overflows. It is easy to observe how many empty hypotheses and idle reasonings the phenomena of this river have put mankind to the expense of. Yet there are people so bigoted to antiquity, as not to pay any regard to the relation of travellers who have been upon the spot, and by the evidence of their eyes can confute all that the ancients have written. It was difficult, it was even impossible, to arrive at the source of the Nile by tracing its channel from the mouth; and all who ever attempted it, having been stopped by the cataracts, and imagining none that followed them could pass farther, have taken the liberty of entertaining us with their own fictions.