Tunzelmann, George William von, 1856- · New York, Scribner & Welford · leaf 263
t in action in a momentby simply inserting a pair of contactplugs into a shoe, as it is called, fixedat any convenient part of the room.Fig. 87 shows a shoe suitable for thispurpose, or for use with an electricreading-lamp. Some of my ladyreaders would probably be glad towork their sewing machines… … Fig. 87. CHAPTER XVII. ELECTRO-METALLURGY. I PROPOSE to consider under this head the electricaldeposition of metals, or, as it is now called, electro-plating, and the application of electricity to the purifica-tion of metals and the reduction of metallic ores, togetherwith the recently-invented…
Electric industries · Electricity
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