Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 308
two halves by a wooden partition, shown in plan inFig. 186, of which each half is filled with mercury, theconvexity of the surface causing it to stand at a higherlevel than the wooden partition. These two halves areconnected with the poles of a battery of one or two cells.When the partition is in…
Electricity
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