which is thought not so well to agree with the elephant, since, according to Aelianus and other writers, it lies not down, at least but rarely, but sleeps standing; it being very troublesome to it to lie down and rise up again; and besides it is represented by some authors as higher than the trees, and therefore this is supposed to agree better with the river horse; especially since it follows,the willows of the brook compass him about; or the willows of the Nile, as some choose to render it; which would put it out of all doubt that the river horse is intended, if it could be established, it being an inhabitant of that river; and yet the above writer speaks of elephants, when grown old, seeking large thick and shady woods to take up their abode in.
Ibid. (Aelian. de Animal.) c. 31. Ibid. l. 7. c. 6. Ibid. c.