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acid called also disulphuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration.

oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with hydrochloric acid a deep red.…

A nitrogenous base, C4H7N, obtained as a colorless liquid by the reduction of pyrrol.

g, an acid of the acrylic acid series, metameric with crotonic acid, and obtained as a colorless liquid; -- so called from having four carbon atoms in the molecule. Called also isocrotonic acid.

silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque.

A colorless liquid of a slightly pungent odor, C9H6N.CH3, first obtained as a condensation product of aldehyde and aniline, and regarded as a derivative of quinoline; -- called also methyl quinoline. [Written also chinaldine.]

A nitrogenous base, C9H7N obtained as a pungent colorless liquid by the distillation of alkaloids, bones, coal tar, etc. It the nucleus of many organic bodies, especially of certain alkaloids and related substances; hence, by extension, any one of the series of alkaloidal bases of which quinoline proper is the type. [W…

A cromlech. [Prov. Eng.] J. Morley.

A colorless crystalline slightly sweet substance obtained from the molasses of the sugar beet.

bout 137 carats and is among the state jewels of France. It is so called from the Duke of Orleans, Regent of France, to whom it was sold in 1717 by Pitt the English Governor of Madras (whence also called the Pitt diamond), who bought it of an Indian merchant in 1701.

A colorless crystalline substance of the phenol series, obtained by melting certain resins, as galbanum, asafetida, etc., with caustic potash. It is also produced artificially and used in making certain dyestuffs, as phthaleïn, fluoresceïn, and eosin.

ree. Milton. HIs clear intelligence revolted from the dominant sophisms of that time. J. Morley.

A colorless stone of high luster, made of paste. It is much used as an inexpensive ornament.

Pertaining to, or designating, a colorless crystalline substance (called rhodizonic acid, and carboxylic acid) obtained from potassium carboxide and from certain quinones. It forms brilliant red, yellow, and purple salts.

A quick and sharp refort; a repartee. J. Morley.

genous base, C20H21N3O, obtained by oxidizing a mixture of aniline and toluidine, as a colorless crystalline substance which forms red salts. These salts are essential components of many of the socalled aniline dyes, as fuchsine, aniline red, etc. By extension, any one of the series of substances derived from, or relat…

, a kind of gas-burner producing a rose-shaped flame. -- Rose camphor (Chem.), a solid odorless substance which separates from rose oil. -- Rose campion. (Bot.) See under Campion. -- Rose catarrh (Med.), rose cold. -- Rose chafer. (Zoöl.) (a) A common European beetle (Cetonia aurata) which is often very injurious t…

ensively; generally; as, to give numbers roundly. In speaking roundly of this period. H. Morley.

A thin, fragrant, colorless oil, HO.C6H4.CHO, found in the flowers of meadow sweet (Spiræa), and also obtained by oxidation of saligenin, etc. It reddens on exposure. Called also salycylol, salicylic aldehyde, and formerly salicylous, or spiroylous, acid.

Quality of being salient; hence, vigor. "A fatal lack of poetic saliency." J. Morley.