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A blowgun; a blowtube. Blowpipe analysis (Chem.), analysis by means of the blowpipe. -- Blowpipe reaction (Chem.), the characteristic behavior of a substance subjected to a test by means of the blowpipe.

t is a weapon much used by certain Indians of America and the West Indies; -- called also blowpipe, and blowtube. See Sumpitan.

lass), and through which he blows to expand or shape it; -- called also blowing tube, and blowpipe.

illiant pearly luster; -- so named on account of its decrepitating when heated before the blowpipe.

A glassy, opaque bead obtained by the blowpipe.

to swell; specifically, to swell up or bubble up under the action of heat, as before the blowpipe. In a higher heat, it intumesces, and melts into a yellowish black mass. Kirwan.

taining alcohol which is converted into vapor by a lamp beneath, so as to make a powerful blowpipe flame when the vapor is ignited. Weale. -- Arc lamp (Elec.), a form of lamp in which the voltaic arc is used as the source of light. -- Dëbereiner's lamp, an apparatus for the instantaneous production of a flame by the…

dic- ammonic-phosphate. It is a powerful flux, and is used as a substitute for borax as a blowpipe reagent in testing for the metallic oxides. Originally obtained by the alchemists from human urine, and called sal microcosmicum.

Of or pertaining to a mixture of oxygen and hydrogen; as, oxyhydrogen gas. Oxyhydrogen blowpipe. (Chem.) See Blowpipe. -- Oxyhydrogen microscope, a form of microscope arranged so as to use the light produced by burning lime or limestone under a current of oxyhydrogen gas.

The science of blowpipe analysis.

s luster; -- so called from its becoming grass-green on being subjected to heat under the blowpipe.

ped by the use of heat; pertaining to the characters of minerals when examined before the blowpipe; as, the pyrognostic characters of galena.

The characters of a mineral observed by the use of the blowpipe, as the degree of fusibility, flame coloration, etc.

e hydrous silicate of iron and manganese; -- so called from the odor given off before the blowpipe.

with the production of new compounds or the manifestation of distinctive characters. See Blowpipe reaction, Flame reaction, under Blowpipe, and Flame.

ntly, in granite and gneiss. So called because many of these species intumesce before the blowpipe. Needle zeolite, needlestone; natrolite.