eces of one half the commutator, while don, England. the other is always in connection with the other half. Hence < «i> » one transmits the positive and the other the negative currents. DUEBBB'S IHFBOTED WATCH CASE. When the machine is set in motion, a current is produced The obvious advantage of… … prevents the currents being changed during periods of rest, no necessity for carrying a separate key. But many consider so that no preliminary examination of the currents is neces- that the annoyance of lost or mislaid keys is of less impor- ary before at once setting the apparatus in operation.…
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