| Encyclopaedia - 1845 - 876 pages
...it is obtained, and its identity at all times. The colours thus communicated by the different base« to flame, afford in many cases a ready and neat way of detecting extremely minute quantities of them ; but this rather belongs to Chemistry than to our present subject. The pure earths, when violently... | |
| 1863 - 708 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 minute quantities of them «... » The pure earths, when violently heated, as has recently been practised by Lieutenant Drummond,... | |
| William Allen Miller - 1863 - 618 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 analysis of the spectra of artificial lights was resumed by Fox Talbot in 1826, in vol. v. of Brewster's... | |
| Edward Isidore Sears - 1865 - 858 pages
...muriates succeed best from their volatility ;" " the colors thus communicated by the different bases to flame, afford in many cases a ready and neat way...of detecting extremely minute quantities of them." TalbotJ, in 1826, analysed the spectra of various artificial lights. He observed a constant yellow... | |
| William Allen Miller - 1867 - 696 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 analysis of the spectra of artificial lights was resumed by Fox Talbot in 1826 (Brewster's Journal... | |
| sir John Frederick W. Herschel (1st bart.) - 1867 - 642 pages
...published in 1827 (Encyc, Metrop., vol. iv.):—"The colours thus communicated by the dif.erent bases to flame, afford in many cases a ready and neat way of detecting extremely minute quantities of them."—Article, " Light,' § 5 2 4-) almost infinite variety of particulars as to their intimate... | |
| 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... | |
| Henry Watts - 1868 - 1170 pages
...them as follows, in the Encyclopedia Metropolitana: "The colours thus communicated by different bases to flame afford in many cases a ready and neat way...detecting extremely minute quantities of them." Fox Talbot, writing in 1826, makes the following valuable suggestions respecting these spectra: "The red... | |
| sir Henry Enfield Roscoe - 1869 - 396 pages
...investigated the spectra of many coloured flames, especially of the stronSPECTRUMANALYSIS. [LECT. in. tium and copper chlorides, and of boracic acid, and...detecting extremely minute quantities of them." Fox Talbot, whose name we know as being so intimately connected with the origin of the beautiful art of... | |
| 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... | |
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