FISHING BY TELEPHONE.
Jzaak Walson, reincarnated in the twentieth century, could further his knowledge of the finny races with a telephone. In Norway they have a telephone by which the sounds of fish may be heard. It, consists of a microphone tn a hermetically-sealed steel box connected with a telephone on shipboard by wires, each sound In the water being testified by the microphone. The inventor asserts that, with its aid, the presence of fish, and approximately their numbers and kind, can be recognised. When herring or smaller fish are encountered in large numbers they make a whistling noise, and the sound made by codfish is more like howling. If they come near the submarine telephone their motions can be distinguished. The flow of water through their gills produces a noise similar to the laboured breathing of a quadruped.
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Cromwell Argus, Volume XXXVII, Issue 1984, 16 April 1906, Page 7
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139FISHING BY TELEPHONE. Cromwell Argus, Volume XXXVII, Issue 1984, 16 April 1906, Page 7
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