Abstract
ON November 18, 1880, a description was given in NATURE of certain great galvanic chronographs which were then being constructed by Messrs. E. Dent and Co., of the Strand and Royal Exchange, London. The second of these instruments—that for the Royal Observatory of Brussels—has now been completed. The arrangements for pricking upon the chronograph barrel are much improved, and as they overcome a serious constructive difficulty, we propose to give some account of them.
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The Brussels Chronograph . Nature 26, 107–108 (1882). https://doi.org/10.1038/026107a0
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DOI: https://doi.org/10.1038/026107a0