nstant. All differences of speed are corrected travel along the rotating cylinder by a carriage, very as the cylinder rotates, glides over a surface partially at the end of each revolution. An accumulation of er- metallic, partially insulated. When in contact with much as the reproducing stylus of… … fig. 4. -REAR VIEW OF ELECTROGRAPH. fig. 3.—FRONT VIEW Of ELECTROGRAM. H901 SCIENTIFIC AMERICAN, INC.
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