 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...  Spectrum analysis, 6 lects - Page 96by sir Henry Enfield Roscoe - 1870Full view - About this book
 | sir John Frederick W. Herschel (1st bart.) - 1867 - 642 pages
...published in 1827 (Encyc. Metrop., vol. iv.): — "The colours thus communicated by the diferent bases to flame, afford in many cases a ready and neat way...of detecting extremely minute quantities of them." — Article, " Light,' § 524.) almost infinite variety of particulars as to their intimate nature... | |
 | John Frederick William Herschel - 1867 - 552 pages
...published in 1827 (Encyc. Metrop., vol. iv.): — "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." — Article, " Light," § 524.) almost infinite variety of particulars as to their intimate nature... | |
 | William Andrew Miller - 1867 - 550 pages
...into the wick of a spirit-lamp. The colours thus communicated by the different bases to flame, ufi'ord in many cases a ready and neat way of detecting extremely minute quantities of them." The analysis of the spectra of artificial lights was resumed by Fox Talbot in 1826, in vol. v. of Brewster's... | |
 | Henry Watts - 1868 - 1170 pages
...as follows, in the Encyclopedia Melropolitana : " The colours thus communicated by different bases to flame afford in many cases a ready and neat way...extremely minute quantities of them." Fox Talbot, writing in 1826, makes the following valuable suggestions respecting these spectra: "The red fire of... | |
 | 1868 - 802 pages
...strontia, and copper, and showed that " the colors communicated to flume by different bases afforded, in many cases, a ready and neat way of detecting extremely minute quantities '' of Bitch bases. In 1826, Fox Talbot declared that he did " not hesitate to say that optical analysis could... | |
 | Henry E. Roscoe - 1869 - 372 pages
...put (in powder) into the wick of a spirit lamp. 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. The pure earths, when violently heated, as has recently been practised by Lieut. Drummond, by directing... | |
 | Henry Enfield Roscoe - 1870 - 514 pages
...put (in powder) into the wick of a spirit-lamp. 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. The pure earths when violently heated, as has recently been practised by Lieut. Drummond, by directing... | |
 | Mary Somerville - 1869 - 454 pages
...nitrate of copper and boracic acid ; and observes that ' the colours thus communicated by different bases to flame afford, in many cases, a ready and neat way of detecting extremely minute quantities of them.'6 The same opinion was afterwards formed by Mr. Fox Talbot, who after many experiments on metallic... | |
 | John Henry Pepper - 1869 - 722 pages
...Sir John Herschel remarks that, " The colours thus communicated by different bases to flame affords in many cases a ready and neat way of detecting extremely minute quantities of them." In 1834 Mr. Fox Talbst, speaking of his experiments with the red tint of flame produced by lithium... | |
 | Henry Enfield Roscoe, Carl Schorlemmer - 1870 - 360 pages
...powder into the wick of a spirit lamp." .... „The colours thus communicated by the different bases to flame afford, in many cases, a ready and neat way of detecting extremely quantities of them." .... „The pure earths, when violently heated, as has recently been practised... | |
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