The wool was formerly short, and used only for cloths, flannels, &c. It has been considerably lengthened in many of the late flocks, and with the improvements in the combing machinery, is now much used in England as a combing wool. The quantity produced is nearly equal to that of the Merino flocks when well kept, varying, according to the size and style of breeding, from 3 to 4 lbs. of clean washed wool, which in quality does not differ materially from half-blood Merino, and sometimes rather exceeds it. The larger animals, of course, produce fleeces of much greater weight, sometimes reaching to 8 or 9 lbs. The South Down will subsist on short pasture, but well repays full feeding. It attains early maturity, is hardy and prolific, frequently producing two at a birth. Like all highly-improved English breeds, it is not a long-lived sheep. It may be considered in its prime at three. The wethers may be fattened at 18 to 30 months, and the ewes at 3 to 5 years, when first required as breeders. The last are sometimes allowed to come in with a lamb at a year, but they cannot be sustained in vigor if put to breeding before two.

The Cheviot

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.

The late Robert Bakewell first commenced a decided improvement with the Leicesters, nearly a century since. He began by selecting the choicest sheep in England, which possessed the essential qualities; and by judicious feeding and management throughout, he soon brought them up to a character widely differing from the original with which he started. So eminent was his success, that in 1787 he let three rams, for a single season, for 1250 pounds, (about $6,200,) and was offered 1050 pounds (about $5,200) for 20 ewes. Soon after

this, he received the enormous price of 800 guineas, or $4,000, for the use of two-thirds of a ram for one season, reserving the other third for himself.