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A thin, dry biscuit, often hard or crisp; as, a Boston cracker; a Graham cracker; a soda cracker; an oyster cracker.

avender blue color. It is related to hornblende and is essentially a silicate of iron and soda; -- called also blue asbestus. A silicified form, in which the fibers penetrating quartz are changed to oxide of iron, is the yellow brown tiger-eye of the jewelers.

A fluoride of sodium and aluminum, found in Greenland, in white cleavable masses; -- used as a source of soda and alumina.

aline cyanide when nitrogen or a nitrogenous compound is strongly ignited with carbon and soda or potash. It conducts itself like a member of the halogen group of elements, and shows a tendency to form complex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which…

A hydrous carbonate of alumina and soda, occuring in white, bladed crustals.

A polymeric form of pyridine, C10H10N2, obtained as a colorless oil by the action of sodium on pyridine.

An igneous rock composed of orthoclase, elæolite, and sodalite.

An aqueous solution of carbolic acid, borax, sodium bicarbonate, and glycerin, used as a spray in diseases of the nose and throat.

which has been saturated by different bases or basic radicals, as the double carbonate of sodium and potassium, NaKCO3.6H2O. (b) A molecular combination of two distinct salts, as common alum, which consists of the sulphate of aluminium, and the sulphate of potassium or ammonium. -- Double shuffle, a low, noisy dance.…

drama; to adapt to dramatic representation; as, to dramatize a novel, or an historical episode. They dramatized tyranny for public execration. Motley.

The sodium salt of a sulphonic acid of a naphthol, C10H5(OH)(NH2)SO3Na used as a developer.

uences from the spinal cord outward; -- said of the motor or efferent nerves. Opposed to esodic.

ls, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case, baryta. They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so. The colors are usually white or near…

See Carbonic acid, under Carbonic. -- Fixed alkali (Old Chem.), a non-volatile base, as soda, or potash, in distinction from the volatile alkali ammonia. -- Fixed ammunition (Mil.), a projectile and powder inclosed together in a case ready for loading. -- Fixed battery (Mil.), a battery which contains heavy guns an…

kle, or heckle. -- Flax cotton, the fiber of flax, reduced by steeping in bicarbinate of soda and acidulated liquids, and prepared for bleaching and spinning like cotton. Knight. -- Flax dresser, one who breaks and swingles flax, or prepares it for the spinner. -- Flax mill, a mill or factory where flax is spun or l…

A gelatin dynamite in which the dope is composed largely of sodium nitrate.

treous compound, used by potters in glazing, consisting of lime, silica, borax, lead, and soda.

A yellowish white, translucent mineral, consisting of the carbonates of lime and soda, with water.

A portable apparatus for making soda water or aërated liquids on a small scale. Knight.

One of the pieces of sod used to line or cover parapets and the faces of earthworks.