 | 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... | |
 | Albany Institute - 1872 - 382 pages
...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
...Bunsen and Kirchhoff celebrated throughout the scientific world. But although these philosophers arc the real discoverers of this method, because they...the theatres examined in the same way gave a most beautiful spectrum, with many light lines or maxima of light. In the red these lines were more numerous,... | |
 | sir Henry Enfield Roscoe - 1873 - 550 pages
...refrangibility ; hence the different colours appear, each letter being able to reflect its own peculiar rays. contributed by different objects to flame afford in...the theatres examined in the same way gave a most beautiful spectrum, with many light lines or maxima of light. In the red these lines were more numerous,... | |
 | Henry Enfield Roscoe - 1873 - 542 pages
...refrangibility; hence the different colours appear, each letter being able to reflect its own peculiar rays. contributed by different objects to flame afford in...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... | |
 | Marlborough College (Marlborough, England). Natural History Society - 1877 - 606 pages
...Copper and some other substances, he says : " 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." 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
...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." The analysis of the spectra of artificial lights was resumed by Fox Talbot (Brewster's Journal of Science,... | |
 | 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... | |
| |
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... 
