| sir Henry Enfield Roscoe - 1869 - 396 pages
...April 27, 1861. APPEND. B.] KIRCHHOFFS HISTOR1CAL SKETCH. 117 the prismatic spectrum of a flame may show it to contain substances which it would otherwise...require a laborious chemical analysis to detect." In a subsequent communication,1 the same physicist, after a striking description of the spectra of... | |
| Mary Somerville - 1869 - 454 pages
...experiments on metallic salts, says in his paper,7 that a glance at the prismatic spectrum of a flame may show it to contain substances which it would otherwise require a laborious chemical analysis to effect. In that paper this gentleman noticed that the glowing salts of lithium and strontium give a... | |
| sir Henry Enfield Roscoe - 1870 - 452 pages
...simple experiment will prove to you the nature of this monochromatic soda light. I have here the moans of producing a very intense soda flame, and I will...concisely than Talbot did in the year 1826. These early H observers did not, however, determine the exact nature of the substance producing the colour, inasmuch... | |
| Lucius Edwin Smith, Henry Griggs Weston - 1870 - 528 pages
...not more, than by any known method." Still earlier than this he had expressed the conviction that " the prismatic spectrum of a flame might show it to...require a laborious chemical analysis to detect." If the first great practical value of the yet undesignated spectroscope and its use was not declared... | |
| Henry Enfield Roscoe, Carl Schorlemmer - 1870 - 360 pages
...correct, and applicable to the other definite rays, a glance at the prismatic spectrum of a flame may show it to contain substances which it would otherwise...require a laborious chemical analysis to detect." In einer späteren Mittheilung **) sagt derselbe Physiker nach der treffenden Beschreibung der Lithium-... | |
| Henry Enfield Roscoe - 1873 - 542 pages
...correct, and applicable to the other definite rays, a glance at the prismatic spectrum of a Hume may show it to contain substances which it would otherwise...require a laborious chemical analysis to detect." In a subsequent communication l the same physicist, after a striking description of the spectra of... | |
| Marlborough College (Marlborough, England). Natural History Society - 1877 - 606 pages
...them." And a f ew years later Fox Talbot remarks : "A glance at the prismatic spectrum of flame may shew it to contain substances which it would otherwise require a laborious chemical analysis to detect." 19 begins to glow red, there is a faint light at the red end of the spectrum ; then you go on increasing... | |
| Henry Enfield Roscoe, Carl Schorlemmer - 1879 - 590 pages
...to the presence of water. He adds, " if this opinion " — as to the cause of the production of the lines — " should prove correct and applicable to...require a laborious chemical analysis to detect." In 1834 Talbot again writes: — "Lithia and strontia are two bodies characterized by the fine red... | |
| Robert Routledge - 1881 - 748 pages
...realized) : " If this opinion should be correct, a glance at the prismatic spectrum of a flame may show it to contain substances which it would otherwise...require a laborious chemical analysis to detect." Some years afterwards (1834), speaking of the spectra of lithium and of strontium, which impart to... | |
| Kirchhoff - 1882 - 676 pages
...correct and applicable to the other definite rays, a glance at the prismatic spectrum of a flame may show it to contain substances which it would otherwise...require a laborious chemical analysis to detect." In einer späteren Mittheilung2) sagt derselbe Physiker nach der treft'enden Beschreibung der Lithium-... | |
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