. Elements of hippology ... Horses. ELEMENTS OF HIPPO LOGY. 67 pressure off the tongue, when the bit is in use, and to localize it on the bars. The port, when the bit is at rest, lies on the tongue. When the bit is used, the port revolves upward and forward, away from the tongue, with the result that the insensitive tongue is freed from its influence. At the upper ends of the cheek- pieces are rings for the attachment of the curb-chain. This chain should be so adjusted that, when it is brought into use, it will lie in a smooth depression of the jaw-bone, called the Figure 49.—The
. Elements of hippology ... Horses. ELEMENTS OF HIPPO LOGY. 67 pressure off the tongue, when the bit is in use, and to localize it on the bars. The port, when the bit is at rest, lies on the tongue. When the bit is used, the port revolves upward and forward, away from the tongue, with the result that the insensitive tongue is freed from its influence. At the upper ends of the cheek- pieces are rings for the attachment of the curb-chain. This chain should be so adjusted that, when it is brought into use, it will lie in a smooth depression of the jaw-bone, called the Figure 49.—The Under Side of the Lower Jaw-Bone. The chin-groove is the rounded portion of the jaw-bone just forward of the angle of the V. In health, it is smooth and rounded, and admirably fitted to receive the pressure of the curb-chain without injury to itself. The two branches of the jaw-bone are very thin and sharp on the under side, where they unite to form the chin-groove, and it is, as will be seen, highly important that the curb-chain should fit into the chin-groove, and not lie on these sharp bones. There should be loops on the posterior edges of the cheek- pieces, half way from the rein-rings to the mouthpiece, to attach the lip-strap to. This strap is often necessary to prevent the horse from getting the lower branch of one of the cheek-pieces. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marshall, Francis Cutler. [from old catalog]; United States. Military academy, West Point. Dept. of tactics. [from old catalog]. Kansas City : Hudson press
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