The use of the blowpipe in chemical analysis, and in the examination of minerals / by J.J. Berzelius ; translated from the French of M. Fresnel, by J. G. Children. With a sketch of Berzelius' system of mineralogy; a synoptic table of the principal characters of the pure earths and metallic oxides before the blowpipe, and numerous notes and additions by the translator.

  • Berzelius, Jöns Jakob, friherre, 1779-1848.
Date:
1822
Catalogue details

Licence: Public Domain Mark

Credit: The use of the blowpipe in chemical analysis, and in the examination of minerals / by J.J. Berzelius ; translated from the French of M. Fresnel, by J. G. Children. With a sketch of Berzelius' system of mineralogy; a synoptic table of the principal characters of the pure earths and metallic oxides before the blowpipe, and numerous notes and additions by the translator. Source: Wellcome Collection.

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    of inorganic chemistry ; in his hands it became an invaluable instrument for discovering very minute portions of metallic matter, in analytical researches. His work De Tubo Ferruminatorio was first pub- lished at Vienna, under the direction of I), A. Born, in I7T9.1 2 Bergman, on account of his health, was assisted in his experiments by Gahn, who particularly ap- plied himself to the use of the blowpipe in his mineralogical studies, in consequence of the readi- ness with which it affords decisive results. The operations which he performed under Bergman’s inspection, who caused him to examine all the minerals then known, taught him how each indi- vidual conducts itself before the blowpipe. Assist- ed by the experience he thus acquired, he con- tinued to employ the instrument in every kind of chemical and mineralogical enquiry, whence he attained to such a degree of skill in its use, that he could detect the presence of substances in a body by its means, which had escaped the most careful analysis, conducted in the moist way. Thus, when Ekeberg asked his opinion respecting the oxide of Columbium? then recently discovered, and 1 The English reader will find it in the second volume of Bergman’s Physical and Chemical Essays, translated by Dr. Cullen, and published in London, 1788. C. 2 Oxide de Tantale. I have restored the original name given to this substance by its discoverer, Mr. Hatchett, and the only one by .which, in England at least, it ought to be distinguished. Mr. Phillips, in his excellent “ Introduction