Abstract
THE discovery of krypton and neon was announced to the Royal Society in the early summer of 1898; and subsequently atmospheric air was found to contain a heavier gas to which the name of xenon was applied. Mr. Baly, in the autumn of the same year, called attention to the presence of helium lines in the spectrum of neon, an observation which confirms that made by Prof. Kayser, of Bonn, and by Dr. Friedländer, of Berlin.
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Argon and its Companions 1 . Nature 63, 164–165 (1900). https://doi.org/10.1038/063164a0
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DOI: https://doi.org/10.1038/063164a0