Fig. 13. — Similar experiment, the high-tension current being passed through the body before it brings the lamps to incandescence. The loop is held over the resonating coil by Mr. Clemens (Mark Twain). (From flash-light photograph.)
Fig. 13. — Similar experiment, the high-tension current being passed through the body before it brings the lamps to incandescence. The loop is held over the resonating coil by Mr. Clemens (Mark Twain). (From flash-light photograph.)
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