Duff, A. Wilmer (Alexander Wilmer), b. 1864, ed, Guthe, Karl Eugen, 1866-1915, Hallock, William, 1857-1913, Lewis, E. Percival (Exum Percival), 1863-1925, Goodspeed, Arthur W. (Arthur Willis), b. 1860, Carman, Albert Pruden, b. 1861, McClung, Robert Kenning, 1874- · Philadelphia, P. Blakiston's Son & Co · leaf 585
the topof the vessel, the solution of HoS04 sur-rounding it. The difference in density be-tween the two solutions helps to keep themapart. There is no tendency to mix diffuselywhile the cell is in action. The dry cells, of which there are manysorts on the market, are adapted especiallyfor… … Fig. 417. VOLTAIC CELLS. 567 Leclanchc which has for a positive element a plate of carbon packed inmanganese dioxide. The negative pole is of zinc and the electrolyte isan ammonium chloride solution. The chemical reactions may be expressedas follows, Zn+2NH,Cl + 2MnOo = ZnCL+2NH3 + Mn,03+H,0. 655.…
Physics
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