[64] See German Patent Specifications, Class 21a, No. 7,452 of 1900, and also No. 8,087 of 1901.
[65] See German Patent Specification, Class 21a, No. 7,498 of 1900, applied for November 9, 1900. The above-mentioned patent is subsequent in date to Mr. Marconi's experiments on the same subject.
[66] See The Electrician, January 18, 1900, Vol. XLVI., p. 475. Also reprint of a Paper of Professor A. Slaby, "Abgestimmte und mehrfache Funkentelegraphie."
[67] See British Specification No. 11,348 of 1901.
[68] See Comptes Rendus, May 21, 1900; Rapports du Congrès International d'Electricité, Paris, 1900, p. 341.
[69] See The Electrician, Vol. XLVI., p. 573, February 8, 1901.
[70] See The Electrician, Vol. L., p. 418, January 2, 1903.
[71] See Mr. Marconi's Friday evening discourse at the Royal Institution, June 13, 1902; also The Electrician, Vol. XLIX., p. 390.
[72] See Proc. Roy. Soc., June 12, 1902. "A Note on the Effect of Daylight upon the Propagation of Electromagnetic Impulses over Long Distances," by G. Marconi.
[73] See Phil. Mag., Vol. IV., p. 253, Series 6, August, 1902. J. J. Thomson, "On Some Consequences of the Emission of Negatively-electrified Corpuscles by Hot Bodies."