would then be opened, and old ones is going on just the same, nevertheless. At wire leading away from the carbon pole is made by a the steel bottle buried in the coal during the process Charleroi, the newest industrial city of Pennsylvania, doubled strip, a, of copper, the ends of which are in- of… … volume of carbonic acid gas, and when coal has heated and then been rapidly quenched, the amount of gas so Fig-. 4.-LAMPS CONNECTED IN PARALLEL. Fig. 2.-THREE CELLS IN SERIES. absorbed is very large indeed, and the inert gas so plates. In a similar way a copper strip, b, is inserted taken up…
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