Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 198
s shown in section in Fig. 114.It depends on the difference in specific gravity of zinc sulphateand copper sulphate. At the bottom of the vessel lies a copperplate embedded in crystals of copper sulphate, and a saturatedsolution of the salt is poured over it to about half fill thevessel. A copper… … Fiq. 112. Fiq 113 -Cu/
Electricity
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