But there is no part of the Hippopotamus more in request than the great canine teeth, the ivory of which is so highly valued by dentists for making artificial teeth, on account of its keeping its colour better than any other kind. This superiority was not unknown to the ancients Pausanias mentions the statue of Dindymene, whose face was formed of the teeth of Hippopotami, instead of elephants' ivory. The canine teeth are imported in great numbers into England, and sell at a very high price. From the closeness of the ivory, the weight of the teeth, a part only of which is available for the artificial purpose above mentioned, is great in proportion to its bulk; and the article has fetched about thirty shillings per pound. The ancient history of the Hippopotamus is extremely curious, and we have many representations of him in coins, in sculpture, and in paintings, which prove, beyond question, that the artists, as well as the writers, had a distinct knowledge of what they intended to represent. The earliest notice which occurs in any author, and which has been considered by many to be a description of the Hippopotamus, is the celebrated account in the fortieth and forty-first chapter of the Book of Job of Behemoth and Leviathan. Many learned men have contended that "Behemoth" really means "Elephant," and thus the Zurich version of the Bible translates the Hebrew by "Elephas." In the edition of the English Bible, printed by Robert Barker, in 1615, for King James I., and since considered as the authorised version, the word "Behemoth" is preserved in the text, and the following annotation is added:--"This beast is thought to bee the Elephant, or some other which is unknowen." Bochart, Ludolph, and some others, have contended warmly in favour of the Hippopotamus. Cuvier thinks, that though this animal is probably intended, yet that the description is too vague for any one to hold a certain opinion on the subject. The theory started by Bochart, and in the main supported by Cuvier, is generally supposed the real one. The description in the Book of Job, though doubtless vague, and in the highest degree poetical, has yet sufficient marks to render the identification perfectly easy, while there are certain peculiarities mentioned, which even a poetical imagination could hardly apply to the Elephant. Thus, when it is said of him, "He lieth under the shady trees, in the desert of the reed and fens; ... the willows of the brook compass him round about," this would seem to be the description of an animal which frequented the water much more than Elephants are accustomed to do. Again, in the fuller description of "Leviathan," in the forty-first chapter, we think it is quite clear that a water animal is intended, though what is there stated might be held to apply to the crocodile as well as the Hippopotamus; both are animals remarkable for extreme toughness of skin, and both are almost equally difficult to kill or to take alive.