EDISON'S XINETOGRAPH AND COSMICAL TELEPHONE. Forging Metals by Electricity. Another Huge Blast. Fig. 2PLAN OF MINE. Fig. 3POSITION OF COS MICAL TELEPHONE WITH REFERENCE T THE EARTH. salt dissolved in it., scientific american, 1891-06-20
EDISON'S XINETOGRAPH AND COSMICAL TELEPHONE. Forging Metals by Electricity. Another Huge Blast. Fig. 2PLAN OF MINE. Fig. 3POSITION OF COS MICAL TELEPHONE WITH REFERENCE T THE EARTH. salt dissolved in it., scientific american, 1891-06-20
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