Word: hertzian
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Dates: during 1903-1903
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Popular Science Monthly--"The Academy of Science of St. Louis," by W. Trelease '84; "Hertzian Wave Wireless Telegraphy," by J. A. Fleming...
Popular Science Monthly--"A Laboratory for the Study of Marine Zoology in the Tropical Atlantic," by A. G. Mayer '97; "The Aurora Borealis of August 21," by A. G. Bell h.'96; "Hertzian Wave Wireless Telegraphy," by J. A. Fleming...