is made adjustable ; that of the wick the vapor of rock oil is mixed with oxygen or with may be cooled by being plunged in cold water. This remaining constant. The plates, c, (see the cut,) are atmospheric air in certain proportions, an explosive feature is deemed of considerable practical… … ter maker of this city, city. whose inetruments, com- Pe gig mended by the arctic ex- Nitric Acid Stains. plorers, Drs. Kane and Those who are engaged TAGLIABUE’S COAL OIL PYROMETER. Hays, have given hima in chemical operations, Further information in relation to this invention world-wide…
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