Like other domesticated cattle, the yak is found of different breeds-- known by the names of Noble yak, Plough yak, etcetera. Next in succession comes the _Musk Ox_ of America, which, from its long hanging hair, and also from many of its habits, bears a good deal of resemblance to the grunting ox. The musk ox is a native of North America; and there his range is confined to the most remote regions of the Hudson's Bay territory. He is met with in the inhospitable track known as the Barren Grounds--and also along the coasts and islands of the Arctic Ocean--but nowhere so far south as the boundary of the United States or the Great Lakes. But for the land expeditions of several Arctic explorers, the existence of the musk ox would hardly have been known; and, as it is, his habits are but little understood. He is not of large size--being between the stature of an ox and a sheep--and in general appearance he resembles the latter more than the former; hence, among naturalists, he is styled the Sheep ox (_ovibos_). He and the Bison, as already remarked, are the only _indigenous_ oxen of America. To return to Asia. In its south-eastern parts--the Indies--we find several other species of the ox tribe. There is the _Gayal_ or _Jungly-gau_, which inhabits the eastern parts of Bengal, especially the mountains that separate this province from Arracan. Of this there is a tame and wild species--the latter an inhabitant of forests, living rather upon the shoots of trees than upon grass. It is a large animal, more like the common ox than any of the buffaloes; and it is also less fierce in its disposition than the latter. Next to the gayal is the _Gam_--also a forest-dwelling ox, of large size; and, like the other, browsing upon the leaves and twigs of trees. The gam inhabits several forest-covered mountains in Central India, where it is only found wild. Attempts have been made to domesticate it, but without success--since it is both a shy and fierce animal; so much so that even the calves will not live in captivity! Another Indian ox is the _Takin_, which inhabits the country of the Kamptis, in the eastern ranges of the Himalayas, and about which there is a dispute among naturalists, as to whether _it is an ox_! We conclude our sketch with the _Anoa_, which belongs to Celebes--a small species bearing some resemblance to the antelopes; and the _Banting_ or _Sumatran Ox_, a native of Java, Borneo, and also, as its second name denotes, of the Island of Sumatra. CHAPTER NINETEEN. SHEEP.