Ring-Bone, in farriery, denotes a hard swelling on the lower end of the pastern, generally extending half way round the forepart of the horse's leg: it is thus termed, from its resemblance to a ring.

This malady frequently arises from strains, and similar accidents ; though, when affecting the hind-pastern, it is often occasioned by forcing young horses too early on their haunches. When the tumefied part is distinctly perceivable round the pastern, without affect-ing the coffin-joint, it is easily cured. But, if it originate from some strain or defect in this joint; or from a callosity seated under the round ligament that covers it ; the care is generally difficult, and sometimes impracticable ; because the disorder is apt to degenerate into a QUITTOR-BONE, and eventually to form an ulcer upon the hoof.

Ring-bones occurring in colts and young horses, frequently disappear, without the aid of any application ; and, while the substance remains tolerably sound, blistering will, in general, prove a sufficient remedy. Bat, if the swelling be of long continuance, and has be-come hard, it may then require both blistering and firing. In order to perform this operation with success, the iron employed, should be thin-ner than that commonly used for such purpose, and the lines or razes, must not be made above one quarter of an inch apart, crossing each other obliquely. A mild blister, extending over the cauterized parts, should next be applied ; and, after having produced the desired effect, it will be requisite only to cover them with the common de-fensive plaster, which will in most cases complete the cure.