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The telephone: an account of the phenomena of electricity, magnetism, and sound, as involved in its action (1877)

Dolbear, A[mos] E[merson], 1837- [from old catalog] · Boston, Lee & Shepard; New York, C. T. Dillingham · leaf 25

An illustration from The telephone: an account of the phenomena of electricity, magnetism, and sound, as involved in its action, 1877, leaf 25 — stand the actionsgoing on in a batterycell of the kind men-tioned. Let Pt rep-resent a plate ofplatinum, and Zn aplate of zinc, bothplaced in a vesselcontaining hydro-chloric acid, whichis also representedFIG- *• by the symbols HC1. As such molecules are extremely minute, therewill of course be an… … THE GALVANIC BATTERY. 21 from the cell, and bubbles of gas will be seen torise from the platinum plate : these bubbles proveupon analysis to be bubbles of hydrogen. At thesame time the zinc will begin to dissolve, formingwhat proves by analysis to be the chloride of zinc;and at the same time a…

Telephone

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