Laudanum, Quince. Syn. Extractum opii cydoniatum, Laudanum cydoniatum, L. Prep. 1. Extract of opium made with quince juice; a few drops of the oils of cinnamon, cloves, and mace being added before the mass cools. Now seldom used.
2. Laudanum, liquid-quince; (Laudanum liquidum cydoniatum, L.) (L. c. paratum fermentatione, L.) A fermented infusion of opium prepared with quince juice, aromatised with cloves, cinnamon, aloes wood, and yellow sandal wood, and evaporated so as to possess about twice the strength of the ordinary tincture. Now obsolete.
Laudanum, Rousseau’s. Wine of opium prepared by fermentation. See Wine.
Laudanum, Smith’s Concentrated. Resembles Battley’s LIQUOR OPII SEDATIVUS, but possesses about 6 times its strength.
Laudanum, Swediaur’s. Prep. From extract of opium, 2 parts, dissolved in a mixture of alcohol, 1 part, distilled water, 8 parts. Every 5 drops contain 1 gr. of opium.
Laudanum, Sydenham’s Liquid. Syn. Laudanum liquidum Sydenhami, L. Similar to Wine of Opium—Ph. L., but rather stronger, and aromatised with a little cloves and cinnamon. Wine of opium is now always sold for it.
Laudanum, Tartarised. Syn. Laudanum liquidum tartarizatum, L. A tincture of opium prepared with spirit alkalised with salt of tartar, and flavoured with aromatics. Obsolete.
LAUGH′ING GAS. See Nitrous oxide.
LAUR′EL. See Cherry laurel, Sweet bay, Oil, &c.
LA′VA. The matter thrown out by volcanoes. The beautiful ornamental vases, jugs, and other objects sold under the name, are a superior sort of unglazed coloured porcelain.