that he would be unable todevelop it properly without the assistance of somemaster mind accustomed to wrestle with nature forher secrets. He therefore invited his friend, thelate Prof. Elisha Gray, of telephone fame, to join himin the undertaking, and received in reply an enthusi-astic acceptance.… … SUBMARINE SIGNALING. An experimental boat christened the Sea Bellwas built and equipped with an 800-pound bellto be operated electrically, the necessary powerbeing supplied by a small dynamo driven by agasoline engine. This bell is lowered into thesea through a well-hole directly in the center…
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