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alternating currents annunciator anode apparatus armature atomic weight automatically bath cable called caused character chemical decomposition chemical equivalent circuit coils connected consists essentially copper coulomb current is passing current is sent deposited device diaphragm dots and dashes duplex telegraphy earth effect elec electric current electric impulses electro-magnet electro-positive electro-therapeutic electrodes electrolyte electromotive force electrostatic induction employed faradic fillet of paper galvanic heat hydrogen induction insulated kathode lead peroxide lever light line wire local battery magnet means metallic Morse system movements moving muscle needle negative nerve obtained operated opposite direction oxygen paper fillet placed platinum polarized poles produced Quadruplex Quadruplex telegraphy receiving instrument record relay rent resistance shown in Fig signals siphon recorder solution sound spark station storage battery substance suitable surface system of telegraphy telephone tion torpedoes transmission tric various voltaic arc voltaic cell W. J. JOHNSTON COMPANY welding wire or conductor
Page 169 - Short Lectures to Electrical Artisans, being a Course of Experimental Lectures delivered to a practical audience. By JA FLEMING, MA, D.Sc. (Lond.), Professor of Electrical Technology in University College, London. With diagrams, fourth edition, crown 8vo, cloth, 4^. Electricity. — Electricity, its Theory, Sources, and Applications.