Tunzelmann, George William von, 1856- · New York, Scribner & Welford · leaf 195
le to beput on each cylinder, and thereby minimising the numberof cylinders required. This necessitates the use of hearingtubes, as shown in the illustration, Fig. 60. For practicaluse this does not cause any inconvenience. One of thegreat advantages of the graphophone for practical purposesis… … Within the last year or two Mr. Edison has again turnedhis attention to the improvement of the phonograph, and THE TELEPHONE. 183 some very beautiful instruments which he has recentlyconstructed have been sent over to this country andexhibited by Colonel Gouraud. One of these is shown inFig. 61. In…
Electric industries · Electricity
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