Occurrence.--In healthy and well nourished horses irregularly used, this affection may suddenly manifest itself. It occurs in singular instances in mares that are in advanced pregnancy even when such animals are at pasture. Usually, however, this malady is found in heavy draft horses that have been kept stabled from one to three days. Symptomatology.--At the outset in severe cases, there is elevation of temperature, labored breathing, accelerated pulse, anorexia and more or less swelling of the affected members. Swelling is very painful and when the affected legs are palpated, pain is manifested by flinching. The inguinal lymph glands are often swollen but in some cases they are not affected in any perceptible degree. In the average case suppuration does not occur and when conditions are favorable, resolution is complete within ten days. The extent of the involvement and the intensity of the affection vary materially in different cases and a chronic lymphangitis may succeed the acute attacks and finally in some instances, elephantiasis results. Treatment.--An active purgative should be given at once and in the ordinary case, stimulants are indicated. If marked distress is present, morphin is given and where there is much rise of temperature, cold drinking water is offered in abundance and catharsis is enhanced by enemata. Locally, hot applications are of benefit. Hot towels or cotton held in position by bandages and kept soaked with warm water will relieve pain and stimulate resolution. Diuretics may be of benefit and anodyne applications are to be employed with profit in some cases. Walking exercise, if not indulged in to excess, is helpful as soon as acute inflammation has subsided. By giving careful attention to the regimen and providing regular exercise for susceptible subjects, this type of lymphangitis is often forestalled. FOOTNOTES: [Footnote 34: Manual of Veterinary Physiology. Page 610.] [Footnote 35: Manual of Veterinary Physiology, page 601.] [Footnote 36: Case report at meeting of the Iowa State Veterinary Medical Association, Jan., 1904, by Dr. S.H. Bauman, Birmingham, Ia.] [Footnote 37: Regional Veterinary Surgery and Operative Technique, by John A.W. Dollar, M.R.C.V.S., F.R.S.E., M.R.I., page 733.] [Footnote 38: As quoted by A. Liautard, M.D., V.M., American Veterinary Review, Vol. 37, page 667.] [Footnote 39: Quoted by Prof. Liautard, American Veterinary Review, Vol. 33, page 190.] [Footnote 40: Traite de Therapeutique Chirurgical des Animaux Domestique par P.J. Cadiot et J. Almy, Tome second, page 460.] [Footnote 41: Traite de Therapeutique Chirurgical, Tome second, page 465.] [Footnote 42: Luxation of the Femur, by Wm. V. Lusk, Veterinary Surgeon, U.S. Cavalry, American Veterinary Review, Vol. 21, page 254.] [Footnote 43: Because of the intimacy of the psoas major (p. magnus) and the iliacus they are sometimes called iliopsoas.]