| Harold Sending the C. Q. D. Message | Frontispiece | | FACING PAGE | | Testing a Generator | 8 | | Wiring | 16 | | Wattmeter | 40 | | Testing the Telegraphy Outfit | 62 | | Electric Bell | 72 | | Feeling Electricity | 174 | | Operating the Switchboard | 204 | | Induction Coil of a Wireless | 330 |
ELECTRICITY AND ITS EVERYDAY USES
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