ollowing : countries great wealth of swamp forests heretofore un- of filings, which in this case acts as a detector, ‘Prof. Oliver Lodge is a worthy continuator of the available, it is surprising that some one has not devised epoch-making work of the great Hertz. in his recent lecture at the Royal… … it. This arrangement has block and swinging sheaves ELECTRIC CABLEWAY. been developed by Lodge into on the brackets, and is made an extremely sensitive wave to pass around a large metal- detector. One terminalof an lic sheave on the tailtree. electric circuit, containing a single voltaic cell and a…
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