Elementary telegraphy : a manual for students; written specially to meet the requirements of the ordinary grade of the subject as published in the syllabus of the city and guilds of London Institute (1910)
Pendry, H. W. (Henry Walter) · London ; New York : Whittaker & Co. · leaf 48
e force in an exactlysimilar way. The first rcmarkahlc use of this secondary PIM.F. wasmade by Plante in 1800, who devised cells capable ofproducing high chemical activity. The electrodes con-sisted of sheets of lead placed in dilute sulphuric acid.They were rolled up with narrow strips of felt… … Electrolysis of water. 3S ELEMENTABY TELEGRAPHY lead by the action of the hydrogen Avliieh is now liljeratedat this new cathode, Avhile the other phxte (now the ancjde)becomes oxidized. By repeated reversals of current theplate which laat served as- tJie anode is deeply coated withPbOo, while the…
Telegraph
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