[Illustration: FIG. 242. WIDE HOCK This horse stands great strains and is not fatigued easily] [Illustration: FIG. 243. NARROW HOCK This horse becomes exhausted very easily] The draft breeds have short legs, and hence their bodies are comparatively close to the ground. The depth of the body should be about the same as the length of leg. All draft horses should have upright shoulders, so as to provide an easy support for the collar. The hock should be wide, so that the animal shall have great leverage of muscle for pulling. A horse having a narrow hock is not able to draw a heavy load and is easily exhausted and liable to curb-diseases (see Figs. 242 and 243). [Illustration: FIG. 244. THE ROADSTER TYPE] The legs of all kinds of horses should be straight; a line dropped from the point of the shoulder to the ground should divide the knees, canon, fetlock, and foot into two equal parts. When the animal is formed in this way the feet have room to be straight and square, with just the breadth of a hoof between them (Fig. 241). Roadsters are lighter in bone and less heavily muscled; their legs are longer than those of the draft horses and, as horsemen say, more "daylight" can be seen under the body. The neck is long and thin, but fits nicely into the shoulders. The shoulders are sloping and long and give the roadster ability to reach well out in his stride. The head is set gracefully on the neck and should be carried with ease and erectness. Every man who is to deal with horses ought to become, by observation and study, an expert judge of forms, qualities, types, defects, and excellences. [Illustration: FIG. 245. SIDE VIEW OF LEGS The diagram shows how the straight lines ought to cross the legs of a properly shaped horse] The horse's foot makes an interesting study. The horny outside protects the foot from mud, ice, and stones. Inside the hoof are the bones and gristle that serve as cushions to diminish the shock received while walking or running on hard roads or streets. When shoeing the horse the frog should not be touched with the knife. It is very seldom that any cutting need be done. Many blacksmiths do not know this and often greatly injure the foot. Since the horse has but a small stomach, the food given should not be too bulky. In proportion to the horse's size, its grain ration should be larger than that of other animals. Draft horses and mules, however, can be fed a more bulky ration than other horses, because they have larger stomachs and consequently have more room to store food. [Illustration: FIG. 246. HOW TO MEASURE A HORSE]