Iodide of iron One drachm. Powdered cantharides Two grains. Powdered arsenic One grain. Cayenne pepper One scruple. Sulphate of iron One drachm. Treacle and linseed meal A sufficiency. Make into a ball, and give. This should be made as it is wanted, for, by keeping, the ingredients become hard, and are apt, when given in that state, to cause injury to the animal. By such slight and simple means, water farcy has generally been removed; but no delay should occur in having recourse to them, as some cases will set all endeavors at defiance, and delay is always dangerous where health is concerned. A few days of neglect will often permit the limb to become organized. It ceases to pit on pressure. Fibrin has been effused under the skin. The swollen leg is even harder than is the healthy member. Then the horse, should it escape true farcy, will carry about an enlarged member for the duration of its remaining life. PURPURA HEMORRHAGICA. This disease formerly was unknown, though at present it appears to be rather common. What is there can shut up the sight of man like ignorance? It is but fair to conclude that =purpura= was as frequent in past times as it now is; yet men, having professional zeal to quicken their recognitions, could not read what was before their eyes, because they had not been tutored to know and to understand it. It was so with our forefathers, and, we may not deny, it is so with the existing generation. Science begets an infatuation. Men, because they have learned much, imagine nature has no more lessons to enforce. At all events, they act as though such were their convictions; else why is it that genius every now and then startles pedantry, by widening the sphere of human perceptions? [Illustration: A HORSE'S HEAD DEFORMED BY PURPURA HEMORRHAGICA.] The cause of this terrible affliction is a mystery. The horse has worked, fed, and looked well, when locked up for the night. The next day the animal is discovered breathing with difficulty, and having several parts of the body greatly enlarged. The creature appears, by the disorder, to be rendered stupid rather than insensible. It stands erect, but seems not to be acutely conscious of its condition. Not only are several portions of the horse's frame swollen beyond all recognition, but through the skin there issues streams of serum fearfully variegated by the admixture of blood. The openings to the nostrils and the lips soon enlarge; then the tongue likewise increases in size, a portion of it hanging out of the mouth. The appetite is never entirely lost, though the affliction prevents deglutition. In this lamentable state the wretched horse may continue for several days, or the disorder may reach its termination in a few hours. As the horse begins to recover, extensive sloughs occur, generally in those parts which have been much enlarged.