...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...

...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...

...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...

...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...

...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-...

...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...

...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...

...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...

...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...

...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-...