The Subject Matter of a Course of Six Lectures on the Non-metallic Elements

Couverture
Longman, Brown, Green, and Longmans, 1853 - 293 pages
 

Pages sélectionnées

Table des matières

Autres éditions - Tout afficher

Expressions et termes fréquents

Fréquemment cités

Page 31 - That in volatile vitriolic acid, a single ultimate particle of sulphur is united only to a single particle of dephlogisticated air ; and that in perfect vitriolic acid, every single particle of sulphur is united to two of dephlogisticated air, being the quantity necessary to saturation ;" and he reasons in the same manner concerning the constitution of water, and the compounds of nitrogen and oxygen.
Page 19 - He stood, in fact, at the very brink of the pneumatic chemistry of Priestley ; he had in his hand the key to the great discovery of Lavoisier. How nearly were those philosophers anticipated by a whole century, and the long interregnum of phlogiston prevented ! On what small oversights do great events in the history of science, as of nations, depend!
Page 31 - A glance at this table will show the justice of the remark of M. Dumas, that, granting matter to be atomic, it must necessarily combine as it is found to do in this instance. We refer to any work on chemistry for a table of atomic weights, and shall only give here those of the atoms which form the principal part of animal and vegetable bodies, namely: hydrogen, carbon, oxygen, and nitrogen: Atomic...
Page 30 - ... specially chemical considerations we may always start from the constitution of atoms, and avail ourselves of the simplified expression thus obtained, that is to say, of the atomic hypothesis. We may, in fact, adopt the view of Dumas and of Faraday, "that whether matter be atomic or not, thus much is certain, that, granting it to be atomic, it would appear as it now does.

Informations bibliographiques