Atkinson, Philip. [from old catalog] · New York, The Century co. · leaf 83
her of silverplated with a rough coating of plat-inum, or of copper plated with a roughcoating of copper, which was thenplated with silver, to give it greaterconductivity, and afterward with plat-inum, to protect it from the dilutesulphuric acid used for the fluid. Thisplate was suspended between… … ELECTRIC BATTERIES. 61 Zinc-carbon Cells.—It was soon found that therough-surface method of depolarization could be muchmore cheaply and efficiently carried out by the use ofcarbon for the conducting electrode than by the expen-sive method adopted by Smee; carbon having not only arough external…
Electricity
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