Abstract
IN his letter (NATURE, vol. xv. p. 449) Prof. Smyth makes a statement respecting the new “half-prism” spectroscope which I cannot help thinking must be founded on a misapprehension of the principle involved. This will, I trust, be made clear when my paper is published in the forthcoming number of the Proceedings of the Royal Society; but meanwhile, as Prof. Smyth appears disinclined to wait for a full explanation of the instrument, I shall be most happy to answer his objections when he informs me what particular “laws of Sir Isaac Newton and nature” are in opposition to the principle of this spectroscope.
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CHRISTIE, W. Centralisation of Spectroscopy. Nature 15, 489 (1877). https://doi.org/10.1038/015489b0
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DOI: https://doi.org/10.1038/015489b0
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