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On the Spectrum of Carbon

Nature volume 23, pages 197198 | Download Citation



ALTHOUGH fifteen years have passed since the possibility of one substance possessing more than one spectrum was first suggested by Plücker and Hittorf, the question of the existence of double spectra cannot yet be considered as decided. One of the elements to which multiple spectra have been attributed is carbon, which was at one time supposed to possess four different spectra: of these one has been shown to be due to oxide of manganese, a second to oxides of carbon, the origin of a third (obtained only from oxides of carbon) has hardly been discussed (though it may prove to be one of the true carbon spectra), and the other “carbon” spectrum—the best known of all—is the one first attributed to carbon by Attfield, but ascribed to acetylene by Ångstrom.

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