Theory and practice of the electric telegraph; a manual for operators and students (1875)
Churchill, Charles Henry, d. 1904. [from old catalog] · Oberlin, Ohio, Sherman & bros. · leaf 51
so the silver. 7. Local Action.—1. Does any hydrogen arise from the zijic? Nearly all zinc is impure, particles of lead, ironSmees battery, or other metals being mixed with it. Thus in allbatteries small electric currents are set in motion on the sur-face of the zinc itself causing hydrogen to… … OF VOLTAIC ELECTRICITY, 31 3. What i» this process called? _ This is called amalgamating th<* zinc audit must always be performed thoroughly with every kind of battery. 8. Two Fluid BattcHcs.-l. Why arc two fluid batteries used? . Daniell, Grove and others have made use of different fluids…
Telegraph
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