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Scientific American, Vol. 58, No. 12 (March 1888) (1888)

leaf 5

An illustration from Scientific American, Vol. 58, No. 12 (March 1888), 1888, leaf 5
celona. EDISON'S NEW SYSTEM OE TEISGBAPHY. versely, is received upon the pin and rests upon the The municipal authorities of Barcelona, as we an- We illustrate herewith a system of telegraphy re- diaphragm. When a momentary current is sent nounced last year, have established a municipal micro-… … Ferran carried out the inoculations of his rabbits ac- ments of the key as manifested in the phone, the up- Fig. l.-THE PHONE; cording to Pasteur's method—i. e., by trephining. ward movement being distinguished by a light stroke Recently, however, he has adopted a new, and, as he and the down…

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