as produced in the same When two electrodes of carbon are brought into con- rings connected and communicating with small pipes, direction that the primary current had flowed. In the tact with each other, or’an electrode of carbon is 1, 2, 3, 4, &. The outer ring of the wheel is divided cut, S… … ture. Around this, several feet of in- were closed so as to have no connection with one an- power of the battery. When the electrodes are separ- sulated wire are coiled, and its two other. The inner ring is divided into the same num- ated nearly to their farthest limit, more light is given ends…
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