169 Scientific American. March 8, 1902. … It is well known that the propa- ment $595,000, $150,000 more being Fig. 2.—THE GUARINI WIRELESS TELEGRAPH REPEATER. gation of long electrical waves over paid for towage and premiums. It wires may be effected to great dis- arrived in Havana about two months tances, but over submerged cables—owing…
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