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" 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... "
Spectrum analysis, 6 lects - Page 92
by sir Henry Enfield Roscoe - 1869
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The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science

1863 - 1212 pages
...put (in powder) into the wick of a spiritlamp 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 Lieat. Drummond, by directing...
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