Such is all that is necessary for the treatment of this disorder; rest--perfect rest, with food capable of supporting nature in the reparative process--is everything which is absolutely necessary. A loose box even does injury, so entire must be the rest, which should be as near to stagnation as it is possible to make it. The embrocation is simply recommended to draw blood to the part, and promote the required deposition. One caution only is necessary--give no purgative; keep the bowels regular by means of cut grass and bran mashes. [Illustration: THE DISEASED BONES OF THE HOCK. THE DARK PLACE INDICATES WHERE THE ULCERATION IS GOING FORWARD. ] If the above measures fail, as in the majority of cases they certainly will, nevertheless good will have been done by abating the violence of the ulcerative process. Before the last resort of all is adopted, another chance remains, which, as an experiment, is justifiable. Puncture the joint--a very small incision will be required; have the limb forcibly retracted or pulled backward; then inject, with a syringe having a fine point, about one ounce of dilute spirits of wine, in which is dissolved half a drachm of iodine. Immediately afterward place the animal in slings, and apply cold water to the hock by means of the India-rubber bandage described in the preceding article. Keep the horse liberally so soon as the pulse becomes quiet, and do not allow it to leave bondage till the tread is firm; as exercise is endured, work may be very gradually resumed. Remember, the above is proposed only as a last experiment; the design is to change the ulcerative action to one of a secretive character, and thereby promote union of the diseased bones. A trial of this kind has never been instituted; but, certainly, judging from the result of a similar operation upon the human subject, there are the best grounds for anticipating good effects. That it may be known where to make the puncture, a drawing made from the bones of a diseased hock is inserted on page 311; the darker line marks the place where the ulcerated surfaces existed, and into which the fluid should be injected. This, however, is so nice an operation that, although unattended with any immediate danger, none but a skilled anatomist should undertake it. In proper and judicious hands it is perhaps as safe, and more likely to be accompanied with benefit than the great majority of veterinary remedies. RHEUMATISM. This form of disease in the horse is commonly known as following more serious affections. After influenza it is very frequent; it is not rare as coming in the train of thoracic disorders; most important organs, being acutely affected, will leave it behind them. On rare occasions it may appear without any forerunner.