The first intimation the shepherd has of the approach of leg evil, is the occurrence of fever and lameness, accompanied by blue or livid patches on the leg, generally about the upper part of the hoof or knee. The skin on the affected parts, in a few days, exhibits scattered vesicles, not unlike the blebs which form in erysipelas; it then gives way, and the parts beneath are seen of a darker tinge, soft, pulpy, and completely gangrenous. Leg evil may prove fatal in a few days, or not for several weeks, much depending on the extent of the sloughing portions, which may include the entire leg, or legs, or may be limited to a single patch. (145.) _Treatment of Leg Evil._ When the animal is in high condition, and the disease has arisen spontaneously, bleeding is the first thing to be thought of. It must, however, be conducted cautiously, it being better to use the lancet a second time, than, by withdrawing too much blood, to reduce the vital powers below the standard which is necessary for replacing the gangrenous portions. Should a leg be affected to any extent, the sheep must be at once destroyed, as there is scarcely a possibility of its surviving, without a degree of care and nicety in the treatment, which it is beyond the power of unprofessional persons to bestow. Where the livid spots are limited, rags dipped in spirit of turpentine, which has been heated by immersing the bottle containing it in hot water, may be laid upon the skin; but when dead portions have begun to separate, the best application is either a warm poultice, made of carrots, which have been boiled and mashed, or one made of boiled oatmeal, which has been fermented by adding to it a table-spoonful of yeast, and placing it for an hour before a fire. When the sore is becoming clean, and the granulations are rising freely, pursue the methods recommended in paragraph (110). (146.) _Prevention of Leg Evil._ Remove the diseased animals from the flock, and, in dressing their sores, never use a sponge, or any thing which, from its value, is apt to be preserved, and, perhaps, applied in no long time to the cuts or scratches of a healthy animal; for, though leg evil is not communicable by ordinary means, yet is it readily excited by inoculation, or the application of putrid matter to a broken surface. If the odour from the affected parts is any way offensive, wash them with, and sprinkle round the fold, either a weak solution of _chloride of lime_, or the disinfecting liquid of Labarraque, articles which may now be procured from every provincial apothecary. Finally, let the shepherd _wash his hands carefully_ before going from diseased to healthy sheep, using, if need be, a little of either of these solutions; and let him look well to any injuries which his charges may receive in July, August, and September, for these are the months most favourable to the occurrence of leg evil.