TREATMENT.—Warbles may be prevented by keeping the cattle from swallowing the eggs. Either by brushing off the legs, or by applying kerosene oil, or a 3% solution of creoline, or one of the proprietary products for keeping flies off cattle. This should be done night and morning during July and August. The larvæ may be killed as soon as the hole is first formed; by injecting kerosene oil from an ordinary oil can into the aperture, or by covering the hole with thick grease, which prevents the larvæ from breathing. When the larvæ are killed the swelling usually soon disappear. PART III. Diseases of Sheep and Goats When a number of Sheep or Goats, or a flock, are to receive medicine, the best and most economical, as well as efficient method, is as follows: Procure a new or perfectly clean pint bottle and cork, fill it two-thirds full of pure water, to which add a _large spoonful, or sixty drops_, of the proper remedy, SHAKE IT THOROUGHLY, so as to perfectly medicate the whole mass. Of this a dessert spoonful is a dose for a sheep or goat. Paste a proper label on the bottle and use it only for that remedy, so as to prevent mistake or confusion. CHAPTER I. GENERAL DISEASES Black Leg Known as _Quarter Ill_, or the _Black Spauld_ of the English Shepherds, or as one of the “Murrains” of this country. It affects young and thrifty sheep, and is rarely found in old and poor stock. It is most common in wet seasons, in the early spring or summer and fall, and when the feed is very luxuriant. The sheep gorge themselves with the rich vegetation, and the digestion being over-taxed, the system is disorganized and the sheep suddenly droop and die. On examination, the wool leaves the skin at the slightest touch, and the body is found to be swollen and blackened in large patches, chiefly on the hind or fore quarter. Air is infiltrated under the skin, and the carcass seems already decomposed and full of black blood. On examining the flock, some will be lame or limping, the eyes red, and the mouth and tongue inflamed and blistered, and on passing the hand over the sides or quarters, they will be found swollen, the wool readily coming off, and a crepitation be heard from the confined air beneath. The urine is dark, the bowels constipated and dung bloody. After a time the animal is unable to stand, and falls upon the side; stretches out the limbs and in a few hours is dead. The disease is worse on moist, rich bottom lands, and is rare on dry hills or gravelly soils. To prevent the disease, such soils and localities should be avoided, and the sudden changes from poor to such rich and succulent and abundant pasturage.