A New Supplement...: C. Cautchouc varnish. Carbo... Carbonas plumbi. Cardamine.

A New Supplement to the latest Pharmacopoeias of London, Edinburgh, Dublin, and Paris, Forming A Complete Dispendatory, Conspectus, and Dictionary of Medical Chemistry, Giving All the Old and New Names, Including the New French and American Medicines, and Poisons; with Symptoms, Treatment, and Tests; as Well As Herbs, Drugs, Compounds, Veterinary Drugs, With the Pharmacopoia of the Vetenary College, Nostrums, Patent Medicines, Perfumery, Paints, Varnishes, And similar articles kept in the Shops; With Their Compositions, Imitations, Adulterations, And Medicinal Uses, Being a General Book of Formulæ and Recipes For Daily Reference in the Laboratory and at the Counter.
Fourth edition, corrected, improved, and very much enlarged.
By James Rennie, M. A., Editor of the Quarterly Journal of Foreign Medicine; the Pharmacopeia Universalis; Author of a Conspectus of Prescriptions in Medicine, Surgery, and Midwifery; the Pharmacopeia Imperialis, &c. &c.
London: Baldwin and Cradock. 1837.
London: Thomas Curson Hansard, Paternoster Row.

CAOUTCHOUC VARNISH is made by taking z3xvj each of elastic gum, boiled linseed oil, and spirit of turpentine, cutting with a wetted knife the caoutchouc into thin slips, liquifying them in a hot sandbath, and while boiling add the linseed oil, and then the turpentine, also warm. When nearly cool strain through linen, and keep in a wide-mouthed bottle. It has the inconvenience of being very tedious in drying. It is used for balloons.

CARBO ANIMALIS. L. Carbo ex carne et ossibus coctus. L. Animal charcoal, prepared from the flesh and bones of animals.

CARBO ANIMALIS PURIFICATUS. L. Purified Animal Charcoal. This is prepared by mixing ääz3xij of hydrochloric acid and of water, gradually pouring this upon lbj of animal charcoal, then digesting it fro two days in a gentle heat, and frequently shaking it. After it hasw settled, pour off the supernatant liquor andwash the charcoal with water, repeatedly changin it till there be no acid perceptible, then dry it.
The gelatine of the bone is only partially dissipated by the calcination in a vessel with a small aperture, and the substance produced is ivory black, much used in sugar refining for removing organic colours. The phosphate and carbonate of lime in the ivory black is removed by the hydrochloric acid. Used in preparing the new alkaloids such as veratria, &c. See IVORY BLACK. Chemically it ought to emit no bubbles when treated with hydrochloric acid, not give any precipitate with this acid on adding ammonia, or the sesqui-carbonate of ammonia.

CARBO LIGNI. L. E: D. Wood Charcoal. Burnt sponge, ivory black, and lamp black, as well as soot, are all a sort of charcoal, with other matters in combination. Medicinally charcoal is a strong antiseptic used for removing fetid smells, such as in old ulcers, decayed teeth, &c. The offensive eructations in dyspepsia, ptyalism, &c., are also partially removed by taking it internally, in doses of gr. x. to €j with rhubarb. It is said to be an antidote to arsenic. The best for tooth-powder is made from cocoa-nut shells.

CARBONAS PLUMBI. The Carbonate of Lead. Cerussa vera. O. Used as a pigment, but often adulterated. When pure, the solution of it in nitric acid will not be disturbed by sulphate of soda. Poisonous, similar to the sugar of lead. See PLUMBI ACETAS (poisonous).

CARDAMINE, L. Cardamine pratensis, flores. L. The flowers of Lady's Smock, or Cuckoo Flower. This herb, like other cresses, is a reputed antiscorbutic. The flowers are said to be a good antispasmodic in epilepsy and hysteria, in doses of €j to 3iij twice or thrice a day.

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