Earl Sparling, The New York World-Telegram, 11th July… (1935)
“ He has invented an "absolutely impossible" machine which will impart vibrations to the earth which, with proper receiving apparatus can be picked up anywhere on the earth's surface, and that this mysterious machine will allow scientists to explore the deep interior of the earth, will enable practical geologists to discover gold, coal and petroleum, and at the same time will give ships the means of navigating without compass or sextant. ”
