Is thus described by Blacklock: "They have a bare head, with a long jaw and white face, but no horns. Sometimes they have a shade of gray upon the nose, approaching to dark at the tip; at others, a tinge of lemon color on the face, but these markings scarcely affect their value. The legs are clean, long, and small-boned, and covered with wool to the hough, but there is a sad want of depth at the breast, and of breadth both there and on the chine. A fat carcass weighs from 12 lbs. to 18 lbs. per quarter, and a medium fleece about 3 lbs. The purest specimens of this breed are to be found on the Scotch side of the Cheviot hills, and on the high and stony mountain farms which lie between that range and the sources of the Teviot. These sheep are a capital mountain stock, provided the pasture resembles the Cheviot hills, in containing a good proportion of rich herbage." They are eminently adapted to high lands and a severe climate, though less so than the Black-faced or Heath sheep of Scotland. They have become an American sheep, by their repeated introduction into this country. A late importation of several choice sheep was made by Mr. Carmichael of New York. The wool on these is from 5 to 7 inches long, coarse, but well suited to combing. Like the Downs, it has heretofore been classed among the middle-wools, but these specimens would seem to indicate that they are verging towards the long-wools. The Bakewell or Leicester, the Cotswold and Lincolnshire, Possess several qualities in common, and it is only a practiced eye that can readily detect the difference. This resemblance arises from a recent, common origin. They are all large and hornless; of a pure white; with long, coarse, and heavy fleeces; excellent mutton sheep; coming early to maturity, and capable of carrying enormous quantities of fat. There have been from time immemorial numerous flocks of these large, coarse-woolled sheep, existing in certain parts of England, under a variety of names, and partaking of some slight peculiarity of features, according to the district in which they are bred. Thus, besides those above-mentioned, there were the Teeswater, the Romney-Marsh, the Kentish, the Bampton, the Exmoor, &c., all of which were deficient in form, slow-feeders, and late in coming to maturity. Improvement of the Long-Wools.