13. (Dr Stevens’ Saline Powders.) Bicarbonate of soda, 12 dr.; common salt, 20 gr.; chlorate of potassa, 7 gr.; for a dose.

14. (Sir M. Tierney’s Remedy.) Cajeput oil, in doses of 20 to 30 drops, every two or three hours. The oil excites the nervous system and equalises the circulation. The late Sir M. Tierney and others prescribed it frequently, it is said, with considerable success.

15. (Common Remedies of the Shops.) These generally consist of chalk mixture, with a little laudanum, and some aromatic or carminative, as cassia, cinnamon, cardamoms, nutmeg, or peppermint. In a few, some astringent, as tincture of catechu, or extract of logwood, is added.

16. (Dr Beaven’s Preventative and Remedy.) The Preventative.—Sulphite of magnesia, 2 dr.; sulphurous acid, 2 oz.; water, 2 oz.; tincture of capsicum, 12 oz. Mix and dissolve, a teaspoonful night and morning.

The Remedy.—Sulphite of magnesia, 2 dr., sulphurous acid, 2 oz.; water, 2 oz.; tincture of capsicum, 12 oz.; sulphate of morphia, 2 gr. Mix and dissolve; a teaspoonful every half hour until relieved.

CHOLERA MEDICINE. The expressed juice of dandelion and milfoil mixed with brandy spirit. (Dr Horn).

CHOLES′TERIN. C26CH44O.H2O. This substance is found in the bile, brain, nerves, blood, &c., and forms the principal ingredient of biliary calculi (gall-stones).

Note.—The remedies containing astringents are the most efficacious.

CHOL′IC ACID. Syn. Glyco-cholal′ic acid. A peculiar acid, existing as cholate of sodium, and associated with choleic acid in the bile. It is a conjugate compound of cholalic acid with a nitrogenised substance called glycocin.

CHON′DRIN. Gelatin obtained from cartilage. It differs from ordinary gelatin in