■willingly and cheerfully. The horse belongs to the genus Equus, which contains several species, including the horse, the ass, the quagga, and the zebra. Horses in a wild state are found in many countries, and are very numerous in South America. Almost every country has its own breed of horses, which is generally suited to the climate. The horses of Iceland are small, with thick shaggy hair. The Arabian horse is much larger, and is one of the finest of all breeds. The Barbary horse of Northern Africa is much like the Arabian, but smaller. The British horse, from which the best horses in the United States have come, has much Arabian and Barb blood in it. It resembles the Arabian in appearance, but is much taller and longer. The best trotting-horses are found in the United States and in Canada. Draught horses, or horses used in drawing heavy loads, are reared in many countries. The Percheron breed, common in France, has been noted for hundreds of years. They are large, heavy horses, with large heads, and are much used for drawing business wagons. The principal parts of the body of a horse are - (1) the chest, (2) the withers, (3) the barrel, or part enclosed by the ribs, (4) the flanks, (5 ) the loins, and (6) the buttocks. The age of a horse may be ascertained from an inspection of its teeth. Horses sometimes live 30 years, but the average age is from 15 to 16 years.