the inoculations of his rabbits ac- ments of the key as manifested in the phone, the up- Fig. 1.-THE PHONE. ward movement being distinguished by a light stroke cording to Pasteur’s method—i. e., by trephining. and the down movement hy a heavy stroke. Fig. 6 shows the arrangement at station. ML is… … to the left or closed, the coil battery cir- Fig. 2.-THE TRANSMITTER. that the new foreman, being a poor worker, cuit is left open at point, b, and the mag- had been content to ‘‘run the messages” for the other workmen, and his alertness while on the netic coil is short-circuited through wires, 9,…
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