Of medicinal agents applicable to gastric tympany the best are stimulants, antiseptics and chemical antidotes. Among stimulants the alkaline preparations of ammonia hold a very high place. These, however, act not as stimulants alone, but also as antacids and indirectly as antidotes since the alkaline reaction checks the acid fermentation which determines the evolution of the gas. They also unite with and condense the carbon dioxide. Three ounces of the aromatic spirits of ammonia, one ounce of the crystalline sesquicarbonate, or half an ounce of the strong aqua ammonia may be given to an ox, in not less than a quart of cold water. Next to this is the oil of turpentine 2 oz., to be given in oil, milk, or yolk of egg. But this too is an antiferment. The same remark applies to oil of peppermint (½ oz.), the carminative seeds and their oils, and the stronger alcoholic drinks (1 quart). Sulphuric or nitrous ether (2 oz.) may be given in place. Pepper and ginger are more purely stimulant and less antiseptic. Other alkalies—carbonate of potash or soda, or lime water may be given freely. Among agents that act more exclusively as antiseptics may be named: muriatic acid 1 to 1½ drs. largely diluted in water; carbolic acid, creosote or creolin, 4 drs. largely diluted; sulphite, hyposulphite or bisulphite of soda 1 oz.; kerosene oil ½ pint; chloride of lime 4 drs.; chlorine water 1 pint; wood tar 2 oz. The latter agent is a common domestic remedy in some places being given wrapped in a cabbage leaf, and causing the flank to flatten down in a very few minutes as if by magic. The extraordinarily rapid action of various antiseptics is the most conclusive answer to the claim that the disorder is a pure paresis of the walls of the rumen. The affection is far more commonly and fundamentally an active fermentation, and is best checked by a powerful antiferment. Even chloride of sodium (½ lb.) and above all hypochlorite of soda or lime (½ oz.) may be given with advantage in many cases. Among agents which condense the gasses may be named ammonia, calcined magnesia, and milk of lime for carbon dioxide, and chlorine water for hydrogen. Among agents used to rouse the torpid rumen and alimentary canal are eserine (ox 3 grs., sheep ½ gr. subcutem), pilocarpin (ox 2 grs., sheep ⅕ gr.), barium chloride (ox 15 grs., sheep 3 to 4 grs.), tincture of colchicum (ox 3 to 4 drs.). Trasbot mentions lard or butter (ox 4 oz., sheep ½ oz.), as in common use in France.