A TELEPHONE FOR FINDING WATER.
A new use for the raicrntelephone has been devised by Count Hugo Von at Oastlo Tratzburg, in the Tyrol, namely, for finding underground watercourses. At several different places on the declivity of a hill he buries a number of microphones in the soil, and connects each of them with a battery and a separate telephone. In the night, when other sources ‘f disturbances are wanting, or less notictable, he listens at the telephones, and is enabled to detect in this manner the faintest murmur or gurgling of water within the earth to a considerable depth. The microphone plays the part of the sensitive ear of hunter or savage, who is often able to detect the presence of water in the same way.
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Temuka Leader, Issue 1034, 23 November 1882, Page 3
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127A TELEPHONE FOR FINDING WATER. Temuka Leader, Issue 1034, 23 November 1882, Page 3
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