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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    the latter forms a white residue on evaporating its nitric solu- tion; has a smell quite peculiar to itself; is not formed of lamina ; and is rather more soluble in alkalies, and much more soluble in acids than the new substance in question. Should there remain any doubt respecting the peculiar nature of this calculus, I would beg to add that both Dr. Wollaston and Dr. Prout have examined its leading properties, and have expressed their conviction that it could not be referred to any of the 6pecies hitherto described. “ It is so difficult to find an appropriate and unexception- able denomination for a new substance, that it is with reluc- tance I propose one for this, especially as a similar production may possibly never again be noticed. It has occurred to me to name it xanthic calculus, from |ecv0öe, yellow, because this term alludes to a striking and probably characteristic property of the substance in question, ( that of forming a lemon-coloured compound when acted upon by nitric acid), and yet does not imply any systematic notion as to its composition.’’ C•