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Scientific American, Vol. 39, No. 13 (September 1878) (1878)

leaf 9

An illustration from Scientific American, Vol. 39, No. 13 (September 1878), 1878, leaf 9
it and the vessel. The a small pencil of battery carbon, and adjusting the holders entering them. After settlement, the time for which varies lighthouses lose, therefore, in utility the nearer a vessel ap- so that the points of the carbons touch, and connecting the from a few days to a fortnight,… … SIMPLE ELECTRIC LIGHT APPARATUS. natural enemies go on together for several days amicably METHOD OF DETERMINING THE POSITION OF VESSELS. feeding, burrowing, and building. We infer that the truce As the points burn away the upper carbon moves down- holds so long as the peace compelling atmosphere is…

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