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ing is attached, and by means of which the forging is lifted and handled is hammering and heating; -- called also porter bar.

A yellowish brown substance obtained by heating potassium in ammonia.

precipitate (Old. Chem), mercuric oxide (HgO) a heavy red crystalline powder obtained by heating mercuric nitrate, or by heating mercury in the air. Prepared in the latter manner, it was the precipitate per se of the alchemists. -- White precipitate (Old Chem.) (a) A heavy white amorphous powder (NH2.HgCl) obtained b…

s affected. It is due to inflammation of the sweat glands, and is often brought on by overheating the skin in hot weather. -- Prickly pear (Bot.), a name given to several plants of the cactaceous genus Opuntia, American plants consisting of fleshy, leafless, usually flattened, and often prickly joints inserted upon ea…

An instrument for measuring the direct heating effect of the sun's rays.

also tetraboric acid), which is the acid ingredient of ordinary borax, and is obtained by heating boric acid.

id, H4P2O7, which is obtained as a white crystalline substance. Its salts are obtained by heating the phosphates.

A complex nitrogenous compound obtained by heating together pyruvic acid and urea.

That which radiates or emits rays, whether of light or heat; especially, that part of a heating apparatus from which the heat is radiated or diffused; as, a stream radiator.

n a direction contrary to their previous movement in another flue. -- Return pipe (Steam Heating), a pipe by which water of condensation from a heater or radiator is conveyed back toward the boiler.

The practices of a rogue; knavish tricks; cheating; fraud; dishonest practices. 'Tis no scandal grown, For debt and roguery to quit the town. Dryden.

To cheat; to defraud by cheating. "A band of rooking officials." Milton.

-- Salt of tartar (Old Chem.), potassium carbonate; -- so called because formerly made by heating cream of tartar, or potassium tartrate. [Obs.] -- Salt of Venus (Old Chem.), blue vitriol; copper sulphate; -- the alchemical name of copper being Venus. -- Salt of wisdom. See Alembroth. -- Sedative salt (Old Med. Chem.…

o, or that which, scorifies; specifically, a small flat bowl-shaped cup used in the first heating in assaying, to remove the earth and gangue, and to concentrate the gold and silver in a lead button.

person who bargains closely, especially, one who cheats in bargains; a swinder; also, a cheating gamester. Sharpers, as pikes, prey upon their own kind. L'Estrange.

ythes, and other cutting instruments, prepared from fagots of blistered steel by repeated heating, rolling, and tilting, to increase its malleability and fineness of texture.

lines. -- Thermal spectrum, a spectrum of rays considered solely with reference to their heating effect, especially of those rays which produce no luminous phenomena.

ly in place. -- To stock cards (Card Playing), to arrange cards in a certain manner for cheating purposes. [Cant] -- To stock down (Agric.), to sow, as plowed land, with grass seed, in order that it may become swarded, and produce grass. -- To stock up, to extirpate; to dig up.

those substances, like arsenic, benzoic acid, etc., which do not exhibit a liquid form on heating, except under increased pressure.

mide, analogous to succinamic acid, which is obtained as a white crystalline substance by heating urea with succinic anhydride. It is known also in its salts.