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Show Sends Radio Waves 1,000 Miles Through Earth Dr. J. Ilnrrls lingers of Ilyattsvllle. 'J Md., and the trans nit ter used In send- I Ing radio waves mderground. With I the ur? of iihout two amperes of cur- rent he hns succeeded In radiating ! radio signals through the earth for s J distance of more tlmn 1,000 miles. I Dr. J. Ilnrrls lingers of Ilyattsvllle. f 'I f ' ' " , LA'" 1 1 III iv Md., and the trans nltter used In send- f j i H ' ?! " - M 1 A Ing radio waves mderground. With M M jfV the use of nbmit two amperes of cur- ! ';', t It, J A rent he hns succeeded In radiating ; ! V I , mCrW' IK K radio signals through the earth for s , "Am ' ' (U )Wj ft' C distance of more than 1,000 miles. . , t : f l ' a iwwiH w - . v a |