Abstract
WITH reference to Mr. Egerton's interesting letter in NATURE of May 16, my colleague, Prof. Fowler, reminds me that he photographed the spectrum of the ammonia flame at the time that we were investigating the spectrum of the active nitrogen glow. Although the general colour of the flame is not unlike that of the nitrogen glow, he found nothing really in common between their spectra in the visual region. Re-examination of the negatives confirms this conclusion. I fear, therefore, that we cannot connect the ammonia flame with active nitrogen, interesting though such a connection would be.
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STRUTT, R. The Ammonia Flame. Nature 89, 320 (1912). https://doi.org/10.1038/089320b0
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DOI: https://doi.org/10.1038/089320b0
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