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. Annalen der Physik und Chemie - Page 971863Full view - About this book
| William Allen Miller - 1872 - 706 pages
...best, from their volatility. The same colours are exhibited also when any of the salts in question are put in powder into the wick of a spirit-lamp. The...different bases to flame, afford in many cases a ready and ueat way of detecting extremely minute quantities of them." The analysis of the spectra of artificial... | |
| Albany Institute - 1872 - 382 pages
...afterward drawn to this subject,, for in 1822 we find him saying " the colors thus communicated by different bases to flame afford in many cases a ready and neat way of detecting minute quantities of them." Twelve years later, Mr. Fox Talbot called especial attention to the magnificent... | |
| Henry Enfield Roscoe - 1873 - 552 pages
...best, from their volatility. The same colours are exhibited also when any of the salts in question are put (in powder) into the wick of a spirit-lamp. The...violently heated, as has recently been practised by Lieut. Drummond, by directing on small spheres of them the flames of several spirit-lamps, urged by... | |
| Henry Enfield Roscoe - 1873 - 542 pages
...colours appear, each letter being able to reflect its own peculiar rays. contributed by different objects to flame afford in many cases a ready and neat way of detecting extremely minute iquantities of them." Fox Talbot, whose name we know as being so intimately connected with the origin... | |
| Edward Henry Knight - 1877 - 984 pages
...Uerscbel remarked that " the colors contributed by different objects to flame afford in many instances a ready and neat way of detecting extremely minute quantities of them.'' Mr Fox Talbot, in 1834. distinguishes tho difference between the red Нпек produced by the names... | |
| William Allen Miller - 1877 - 568 pages
...best, from their volatility. The same colours are exhibited also when any of the salts in question are put in powder into the wick of a spirit-lamp. The...bases to flame, afford in many cases a ready and neat wav of detecting extremely minute quantities of them." The analysis of the spectra of artificial lights... | |
| Marlborough College (Marlborough, England). Natural History Society - 1877 - 606 pages
...understood, for in speaking of the spectra of Strontium, Copper and some other substances, he says : " The colours thus communicated by the different bases...of detecting extremely minute quantities of them." And a f ew years later Fox Talbot remarks : "A glance at the prismatic spectrum of flame may shew it... | |
| William Allen Miller - 1877 - 840 pages
...best, from their volatility. The same colours are exhibited also when any of the salts in question are put in powder into the wick of a spirit-lamp. The...colours thus communicated by the different bases to name, afford in many cases a ready and neat way of detecting extremely minute quantities of them."... | |
| John Henry Pepper - 1877 - 764 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 Talbot, speaking of his experiments with the red tint of flame produced by lithium... | |
| Henry Enfield Roscoe, Carl Schorlemmer - 1879 - 590 pages
...concerning these observations — " the colour thus contributed by different objects to flame affords in many cases a ready and neat way of detecting extremely minute quantities of them." Again, Fox Talbot writes as follows in 1826: — "The red fire of the theatres gave a most beautiful... | |
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