The disease in the cow is ushered in by a slight fever, which, however, is usually overlooked, and the first sign is tenderness of the teats. Examined, these may be redder and hotter than normal, and at the end of two days there appear little nodules, like small peas, of a pale-red color, and increasing so that by the seventh day they may measure three-fourths of an inch to 1 inch in diameter. The yield of milk diminishes, and when heated it coagulates slightly. From the seventh to the tenth day the eruption forms into a blister, with raised margins and a depression in the center, and from which the whole of the liquid can not be drawn by a single puncture. The blister, in other words, is chambered, and each chamber must be opened to evacuate the whole of the contents. If the pock forms on a surface where there is thick hair it does not rise as a blister, but oozes out a straw-colored fluid which concretes on the hairs in an amber-colored mass. In one or two days after the pock is full it becomes yellow from contained pus and then dries into a brownish-yellow scab, which finally falls, leaving one or more distinct pits in the skin. Upon the teats, however, this regular course is rarely seen; the vesicles are burst by the hands of the milker as soon as liquid is formed, and as they continue to suffer at each milking they form raw, angry sores, scabbing more or less at intervals, but are slow to undergo healing. The only treatment required is to heal the sores. As milking is the main cause of their persistence, that must be done as gently as possible, or even with the teat tube or dilator. (Pl. XXIV, figs. 3 and 4.) It is essential to check the propagation of the germ, and for this purpose the sore teats may be washed frequently with a solution of half an ounce hyposulphite of soda in a pint of water. This will usually check the inflammation and cut short the malady. SUPPRESSION OF MILK. The absence of milk in the udder may result from ill health, debility, emaciation, chronic disease of the bag, wasting of the gland from previous disease, or insufficient feed, but sometimes it will occur suddenly without any appreciable cause. The treatment consists in removing the cause of the disease, giving rich albuminoid feed made into warm mashes, and administering ounce doses of aromatic carminatives, like anise seed, fennel seed, etc. Rubbing and stripping the udder are useful; the application of oil of lavender or of turpentine, or even a blister of Spanish flies, will sometimes succeed. BLOODY MILK.