Abstract
THE wayward and inconstant train of coloured light-bands that spectroscopists have noted and distinguished in the spectra of various carbon-compounds in flames and gas-vacuum tubes are as yet far from having all received their full and appropriate interpretations. The extent to which they abound as impurities in almost all spectral vacuum-tubes is a common observation, and in a survey of this kind, aiming at no systematic exploration, of a variety of end-on vacuum-tubes in the large and perfect spectroscope erected by Prof. Piazzi Smyth for the examination of auroræ, I have had from time to time, at his kind invitation, excellent opportunities for discriminating some of the component groups and clusters of the carbon-denoting series from each other pretty clearly.
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HERSCHEL, A. Carbon and Carbon-Compounds . Nature 22, 320 (1880). https://doi.org/10.1038/022320a0
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DOI: https://doi.org/10.1038/022320a0