Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 196
ells Cell is constructed in a great variety of forms,but consists essentially of a zinc rod immersed in diluteacid, separated by porous earthenware, or some materialgradually permeable by liquids, from sulphate of copper inwhich a copper rod is immersed. In this case the hydrogenset free by the… … Fig, 111. 178 Electricity. [Book in. of the zinc and the copper sulphate, the latter of which canbe replaced by packing crystals of copper sulphate round thecopper plate, and in this case the working of the cell continuestill the zinc is consumed. The formation of zinc sulphate inthe zinc cell…
Electricity
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