Conspicuous as is the giraffe, it is not so easy to distinguish it in the haunts where it inhabits. Seen from a distance, it has the appearance of a decayed tree, and, remaining motionless, it is often passed by the hunter or traveller without being observed. It is itself very keen-sighted; and the manner in which its large beautiful eye is set gives it a decided advantage for seeing around it, even without the necessity of turning its head. On this account it is approached with great difficulty, and usually contrives to escape from the most ardent pursuer. The _Camels_ come next in turn. Of these there exist two distinct species--the Camel, or Bactrian camel; and the Dromedary, or Arabian camel. Both are found only in a domesticated state. Both are "beasts of burthen," and of both there are several varieties. First, then, of the Bactrian camel--that is, the species with two humps. This animal differs very much from the Arabian camel, and is altogether more rare. It is about ten feet in length of body, and covered generally with a thick shaggy coat of hair of a dark brown colour; but there is no difficulty in distinguishing it from its Arabian congener. The two huge humps or hunches upon its back form a sufficient token by which to identify the species. It is found in Persia and the adjoining countries; but in no part in such numbers as in the middle zone of Asia--in the Taurus, and to the north of the Himalaya Mountains. It is also seen occasionally in Arabia and other countries; but in these it is rare, the dromedary taking its place for all purposes required by man. It is, nevertheless, of a stouter build than the latter, and stronger in proportion to its size. As already stated, there are several varieties, produced by a difference in stature, colour, and swiftness. The Dromedary, or Arabian camel, is altogether more widely distributed, and better known to the world. It is propagated in Arabia, Persia, the south of Tartary, some parts of India, in Africa from Egypt to Morocco, and from the Mediterranean Sea to the river Senegal. It is also numerous in the Canary Islands, and has been introduced into Italy, especially at Pisa, in Tuscany. It is not generally known that it has also been transported into the Island of Cuba, and employed at the mines of El Cobre, near Santiago; and later still--in fact, at the present hour--an attempt is being made to naturalise it upon the central plains of Texas and California.