Abstract
WHILE nothing will give me greater pleasure and confidence in my own worked-out views than to learn, as you intimate in the editorial note (NATURE, vol. xix. p. 400), that so able a working scientist as Dr. Van Monckhoven had preceded me in pointing out the value of end-on gas-vacuum tubes, and had sent specimens similar to mine to several observers in England, allow me to inquire where I can find any published account in this country of his tubes, the parties to whom they were sent, and the work accomplished with them? And why, also, if the said tubes were found by those gentlemen as intensely superior for spectroscopic results as mine are proving themselves—they have not yet been described in any of the latest London books I have been able to look into on spectroscopy, natural philosophy, electricity, and instrument-makers' price lists, though the old, pale, imperfectly-lighted, transverse-vision tubes are referred to in all?
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SMYTH, P. End-on Gas-Vacuum Tubes in Spectroscopy. Nature 19, 458 (1879). https://doi.org/10.1038/019458c0
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DOI: https://doi.org/10.1038/019458c0
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