North America has its parallel to the argalis in the famous bighorn. It is now very rare even in Northern Canada, and becoming scarce in the United States, though a few are found here and there at various points on the Rocky Mountains as far south as Mexico. In habits it is much the same as other wild sheep--that is to say, it haunts the rock-hills and "bad lands" near the mountains, feeding on the scanty herbage of the high ground, and not descending unless driven down by snow. [Illustration: WILD SHEEP AND GOATS 1. Chamois. 2. Moufflon. 3. Argali. 4. Markhor.] The bighorn sheep are very partial to salt. Mr. Turner, who hunted them in British Columbia, says: "Wild sheep make periodical excursions to the mountain-tops to gorge themselves with salty clay. They may remain from an hour to two days, and when killed their stomachs will be found full of nothing but the clay formed from denuded limestone, which they lick and gnaw until sometimes deep tunnels are formed in the cliffs, large enough to hide six or seven sheep. The hunter, standing over one of these warrens, may bolt them within two yards of him. In the dead of winter sheep often come to the woods to feed on fir-trees. At such times they may be seen mixed with black-and-white-tailed deer, low on a river-bank. I have known them come within forty yards of an inhabited hut." Mr. H. C. Nelson tells us that once he was sleeping with two other friends in a hut in the mountains where some miners had lived for a time. These men, when they washed up their pots and pans, threw the slops away at a certain place close by the hut. As all water used for cooking meat has salt put into it, a little salt remained on the surface. This the wild sheep had found out, and were in the habit of coming to lick it at night. The bighorn sheep stands from three feet two inches to three feet six inches at the shoulder. The horns are of the general type of the argalis, but smoother. Another bighorn is found in Kamchatka. There is also a beautiful white race of bighorn inhabiting Alaska. The typical Rocky Mountain race is browner than the Asiatic argalis, and in winter is dark even beneath the front parts of the body. It is not found on the high peaks of the great ranges, but on difficult though lower ground on the minor hills. THE URIAL The vast range of the Himalayas affords feeding-ground to other species of wild sheep and wild goat, so different in the shape of the horns that the variations of the sheep race under domestication need not be matter for wonder when so much variety is seen in nature.