CATHARTICS.--Medicines--also known as purgatives--which cause free evacuations of the bowels. The only purgatives used by the author in his cattle practice, as a general rule, are aloes, cream of tartar, Epsom-salts, lard and linseed-oil. These answer all the indications, where purgatives are useful; indeed, no better purgative for cattle can be found than Epsom-salts, combined with a carminative or aromatic drug, such as ginger. CAUSTICS.--Substances which burn or destroy parts, by combining with them and causing their disorganization; used to destroy unhealthy action, or morbid growths, such as foul ulcers, foul in the foot, warts, etc. The most powerful remedial of this class is actual cauterization with a red-hot iron; caustic potash, lunar caustic, nitrous and sulphuric acids, permanganate of potash, etc., are also used. CORDIALS.--Best brandy, three ounces; orange peel, one drachm; tepid water, one pint. Mix all together, for one dose. Or, this for a single dose: ale, one pint; Jamaica ginger, two drachms. Or, the following, also a single dose: allspice, three drachms; ginger, one drachm; caraway seeds, two drachms. DEMULCENTS.--Mucilaginous medicaments, which have the power of diminishing the effects of stimulating substances upon the animal system. Of this class, garden rue, or marsh-mallow, gum-arabic, and gum-tragacanth are the most useful. DETERGENTS.--Agents which remove foulness from ulcers. DETERGENT POWDER.--Prepared chalk, two ounces; alum, one ounce. Mix; to be sprinkled on the part, after washing with Castile-soap and water. This powder is also an admirable application for foot-rot in sheep. DIAPHORETICS.--Agents which increase the natural discharge through the pores of the skin, and in some animals induce perspiration. DIGESTIVES.--Medicines which promote suppuration. DIGESTIVE OINTMENT.--Mix together equal portions of spirits of turpentine and lard. Or, mix together with a gentle heat the following: Venetian turpentine, one ounce; lard, one ounce; pulverized sulphate of copper, two drachms. Or this, mixed: rosin, two ounces; spirits of turpentine, one ounce; red precipitate, one-half an ounce; lard, two ounces. DIURETICS.--Medicines that stimulate the action of the kidneys, and augment the secretion of urine. These are very useful in swellings of the legs, or body. Take of nitrate of potash and rosin, each six drachms; mix, and divide in three powders; one to be given daily. Or, the following: spirits of turpentine, half an ounce; Castile-soap, one ounce; Jamaica ginger, one drachm; opium, one drachm. Mix: and divide in two balls; one to be given each day. EMOLLIENTS.--Medicines which relax the lining tissues, allay irritation, and soften the parts involved,--generally of a mucilaginous, or oily character. Lard, linseed meal, and marsh-mallows are chiefly used.