_Grass_.--This is the natural medicine of both cat and dog. In large doses, it acts as an emetic; in smaller, as a purgative; its mode of action being similar in both cases, namely, mechanical irritation of the muscular and mucous coats of the alimentary canal; this causing spasmodic contraction of the stomach, or increasing the peristaltic motions of bowel. Grass also possesses valuable antiscorbutic properties, and the cat, either in sickness or health, should never want a supply of it. If pussy has been out all night at a feline entertainment on the tiles, and the excitement has produced constipation, her remedy is grass. If she has made too free in the aviary, and the feathers of the Norwich cock lie unpleasantly on her stomach, grass is her cure; or if she, at any time, feels hot or feverish, out into the garden she goes, and a little grass, taken at intervals, soon makes her feel as fresh as the lark. Don't let your cat want grass, then; if you live in a town, and she has some difficulty in getting it, either procure it for her yourself, or, what is better, get a boxful of earth, and sow it, and call it pussy's garden. Now for pussy's ailments. _Mange_.--All skin diseases in the cat, whether pustular, papular, or squamous, may be, for convenience' sake, called _mange_. Cats are very subject to skin diseases, especially long-haired ones, and those who have been the subjects of bad or careless treatment; for they are always brought about by poverty of the blood, from under-feeding, or surfeit from over-eating on dainties. Now I must warn the cat-fancier that there is no _specific_ for the cure of mange in the cat, and that the cure will take weeks, and at times even months; he must therefore make up his mind either to destroy the cat at once, or set about curing her in earnest. Attend, in the first place, to her diet. It must be nourishing, but not heating; plenty of good milk, and no meat, unless she be very thin, when raw meat in small quantities may be given twice a day. Dress the skin with carbolic oil, washing her carefully next day; then try equal parts of sulphur-ointment and green iodide of mercury ointment, mixed with an equal bulk of lard. Give her arsenic internally--one drop of the _Liquor arsenicalis_ twice a day, in milk, for a week, then thrice a day for another week, when you must omit it for a day or two, and then begin again. At the same time give her, once or twice a week, a little sulphur. Placing brimstone-roll in a cat's drinking-water is all a mistake, and does no good at all. Sometimes the disease will only yield to a course of iodide of potash. Give her half-grain or whole-grain doses, made into little boluses with breadcrumbs--which any chemist can make for you--twice a day.