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ntimony, and producing a sustained and vivid colored light, used in making signals and in pyrotechnics; -- called also blue light. -- Bengal stripes, a kind of cotton cloth woven with colored stripes. See Bengal, 3. -- Bengal tiger. (Zoöl.). See Tiger.

[U. S.] -- Blue light, a composition which burns with a brilliant blue flame; -- used in pyrotechnics and as a night signal at sea, and in military operations. -- Blue mantle (Her.), one of the four pursuivants of the English college of arms; -- so called from the color of his official robes. -- Blue mass, a prepara…

tained from a lake in Thibet, and was sent to Europe under the name of tincal. Borax is a pyroborate or tetraborate of sodium, Na2B4O7.10H2O. Borax bead. (Chem.) See Bead, n., 3.

modic pain or hot sensation in the stomach with a rising of watery liquid into the mouth; pyrosis. -- Weaning brash (Med.), a severe form of diarrhea which sometimes attacks children just weaned.

nstatite, often having a bronzelike luster. It is a silicate of magnesia and iron, of the pyroxene family.

ack stripes, very hard in texture. It is a species of ebony, and is obtained from the Diospyros qusesita. Called also Coromandel wood.

A granular variety of pyroxene, green or white in color.

A solution of pyroxylin (soluble gun cotton) in ether containing a varying proportion of alcohol. It is strongly adhesive, and is used by surgeons as a containing for wounds; but its chief application is as a vehicle for the sensitive film in photography. Collodion process (Photog.), a process in which a film of sensit…

A colorless liquid resembling phenol or carbolic acid, homologous with pyrocatechin, and obtained from beechwood tar and gum guaiacum. [Written also creasol.]

an organic acid, C3O3N3H3, first obtained by heating uric acid or urea, and called pyrouric acid; afterwards obtained from isocyanic acid. It is a white crystalline substance, odorless and almost tasteless; -- called also tricarbimide.

olored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone.

A dark green or bronze-colored laminated variety of pyroxene, common in certain igneous rocks.

A crystallized variety of pyroxene, of a clear, grayish green color; mussite.

A salt of disulphuric or pyrosulphuric acid; a pyrosulphate.

n the Harts, where it was originally manufactured), fuming sulphuric acid, and especially pyrosulphuric acid. See under Pyrosulphuric.

A dark-colored, basic, igneous rock, composed essentially of pyroxene and a triclinic feldspar with magnetic iron. By many authors it is considered equivalent to a coarse-grained basalt.

See Pyroxanthin.

A mineral of the pyroxene group, orthorhombic in crystallization; often fibrous and massive; color grayish white or greenish. It is a silicate of magnesia with some iron. Bronzite is a ferriferous variety.

acid, and hence called also sulphuric ether. It is powerful solvent of fats, resins, and pyroxylin, but finds its chief use as an anæsthetic. Called also ethyl oxide.ethyl ether.

A variety of pyroxene, from the valley of Fassa, in the Tyrol.