The flame of sulphur and nitre contains a red ray which appears to me of a remarkable nature. This red ray appears to possess a definite refrangibility, and to be characteristic of the salts of potash, as the yellow ray is of the salts of soda, although,... Annalen der Physik und Chemie - Page 931863Full view - About this book
| Henry Enfield Roscoe, Carl Schorlemmer - 1870 - 360 pages
...nature." .... „Thia red ray appears to possess a definite refrangibility , and to be eharacteristic of the salts of potash, as the yellow ray is of the salts of soda, although , from it8 feeble illuminating power, it is only to be detected with a prism. If this should be admitted,... | |
| Royal Society of Edinburgh - 1872 - 914 pages
...contains a red ray of remarkable nature. This red ray possesses a definite refrangibility, and appears to be characteristic of the salts of potash, as the yellow ray is of the salts of soda. If this should be admitted, I would further suggest that ivhenever the prism shows a homogeneous ray... | |
| Henry Enfield Roscoe - 1873 - 542 pages
...molecules of the colouring matter, reduced to vapour and in a state of violent ignition." Talbot says: : " The flame of sulphur and nitre contains a red ray...from its feeble illuminating power, it is only to be detected with a prism. If this should be admitted, I would further suggest, that whenever the prism... | |
| Henry Enfield Roscoe - 1873 - 552 pages
...molecules of the colouring matter, reduced to vapour and in a state of violent ignition." Talbot says : l " The flame of sulphur and nitre contains a red ray...from its feeble illuminating power, it is only to I>e detected with a prism. If this should be admitted, I would further suggest, that whenever the prism... | |
| sir Henry Enfield Roscoe - 1873 - 550 pages
...molecules of the colouring matter, reduced to vapour and in a state of violent ignition." Talbot says : l " The flame of sulphur and nitre contains a red ray...appears to possess a definite refrangibility, and to.be characteristic of the salts of potash, as the yellow ray is of the salts of soda, although, from... | |
| Gustav Kirchhoff - 1882 - 832 pages
...of the colouring matter reduced to vapour, and held in a state of violent ignition." Talbot sagt1): „The flame of sulphur and nitre contains a red ray,...refrangibility, and to be characteristic of the salts of potash, äs the yellow ray is of the salts of soda, although, from its feeble illuminating power, it is only... | |
| Royal Society of Edinburgh - 1872 - 882 pages
...pointing out the fact that in inquiries like this an achromatic telescope is not necessary.] racteristic of the salts of potash, as the yellow ray is of the salts of soda. If this should be admitted, I would further suggest that whenever the prism shows a homogeneous ray... | |
| J. B. Hearnshaw - 1990 - 554 pages
...he announced in 1839 practically simultaneously with Daguerre in France. In 1826 Fox Talbot wrote: The flame of sulphur and nitre contains a red ray,...me of a remarkable nature This red ray appears to 32 possess a definite refrangibility, and to be characteristic of the salts of potash, as the yellow... | |
| 1863 - 1212 pages
...of the colouring matter, reduced to vapour and held in a state of violent ignition." Talbot says*, "The flame of sulphur and nitre contains a red ray...from its feeble illuminating power, it is only to be detected with a prism. If this should be admitted, I would further suggest that whenever the prism... | |
| 1862 - 670 pages
...of nitre and sulphur, he observed a red ray of low but definite refrangibility, which he regarded as characteristic of the salts of potash, as the yellow ray is of the salts of soda. He concludes his paper with the following observation, which follows some remarks upon some experiments... | |
| |