The Indians of North America possess two or three varieties of domesticated dogs, evidently derived from the wolves of that region. Indeed, the common Indian dogs, found among the Sioux and other northern tribes, bear so close a resemblance to the large American wolf, that they are often taken for this animal, and in consequence shot, or otherwise killed by mistake. The Indians use them for carrying burdens: their tents and tent poles being transported by these animals on long journeys across the prairies. Their flesh is a favourite article of the savage _cuisine_; but it is too costly to be used as an every-day food; and is only served up on grand festive occasions. Like the dogs of Tibet, these Indian wolf dogs have the greatest antipathy to a white skin; so much so, that even a friend in that guise can rarely obtain either their confidence or friendship. A smaller kind than the common one is found among certain tribes, and appears to have derived its origin from the prairie wolf--the jackal of America--while the Hare Indians of the Rocky Mountains possess a third variety; and it is known that still another exists among the tribes of Russian America. This last is short-haired and smooth-coated: therefore differing altogether from the Indian dogs of the prairies. In Mexico, there are two or three native dogs: found there on the arrival of Europeans. One is the _Alco_--a dog remarkable for a curious hunch or protuberance upon the back and shoulders, a thick short neck, and small pointed muzzle. He is thinly covered with long hair, of a yellowish colour. Another singular variety is the dog of Chihuahua and this is, perhaps, the smallest of all canine creatures. Full-grown specimens have been seen, whose dimensions did not exceed those of the common rat; and a singular fact, well authenticated, is, that this dog, when transported from Chihuahua to any other place--even to the city of Mexico itself-- invariably becomes larger, or degenerates, as the Mexicans have it! There is also in Mexico a hairless dog. It is, no doubt, the same as that known by the name of Turkish dog; since this variety came originally from Spanish America. In South America, there are several species of native dogs, found among the savages of the Orinoco and Amazon. They are small animals, usually of a whitish colour: but their owners follow the curious practice of dyeing them with annatto, indigo, and other brilliant dyes, for the purpose of rendering them more ornamental! We can only find space to say that there are many other varieties of domesticated dogs, almost unknown beyond the countries in which they are found. Such are the _Quao_ of Rhamgur, the Sumatran dog, the _Poull_ of New Ireland, the dogs of Patagonia and Tierra del Fuego--those of the South Sea Islands; and the _Waht_ that inhabits some of the ranges of the Himalayas.