 | 1861 - 1188 pages
...account of their volatility. He also adds the distinct statement, that " the colours thus communicated by different bases to flame afford in many cases a ready...of detecting extremely minute quantities of them." ROYAL SOCIETY. [Continued from p. 77-] November 22, 1860. — Major-General Sabine, RA, Treasurer and... | |
 | J. B. Hearnshaw - 1990 - 554 pages
...spectra of flames was taken up from the early 1820s by Sir John Herschel (1792-1871). He wrote in 1823: The colours thus communicated by the different bases...of detecting extremely minute quantities of them' (3). Herschel was therefore one of the first to suggest that flame colours could be used for chemical... | |
 | Michael J. Crowe - 1994 - 468 pages
...with various metallic salts, stated: "The colours thus communicated by the different bases to flames afford, in many cases, a ready and neat way of detecting extremely minute quantities of them. . . ." By 1828 Josef Fraunhofer had published papers in which he ( 1 ) described over 500 dark lines... | |
 | John Holmes Agnew, Walter Hilliard Bidwell - 1871 - 828 pages
...intervals at all events, till 1827, when he wrote, " The colors thus contributed by different objects to flame afford in many cases a ready and neat way...of detecting extremely minute quantities of them." Here we find spectrum analysis almost stated in terms, and yet, although Herschel, Brewster, and Fox... | |
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The colours thus communicated by the different bases to flame, afford in many cases a ready and neat way of detecting extremely minute quantities of them. 
