[472]. Tavernier, “Voyages en Turquie, en Perse, et aux Indes,” Paris, 1718, vol. ii, p. 392; liv. ii, chap. 24.
[473]. Engelberti Kaempferi, “Amœnitatum exoticarum fasciculi V,” Lemgoviæ, 1712, pp. 395, 396.
[474]. Kunz, “Gems and Precious Stones of North America,” 2d ed., New York, 1892, p. 183.
[475]. Rumphius, “D’Amboinsche Rariteitskamer,” Amsterdam, 1741, pp. 303–305.
[476]. “Die Gesta Romanorum,” ed. Wilhelm Dick, Erlangen, 1890, p. 127.
[477]. Dr. H. C. White, “The Chemical and Physical Characters of the So-called ‘Mad-Stones,’” British Association for the Advancement of Science, 73d Report, Meeting of 1903 at Smithfield, London, 1904, p. 605.
[478]. “Lancet,” vol. 164, Jan.-June, 1903, p. 343.
[479]. American Journal of Science, vol. xxxiv, Dec., 1887. See also Kunz, “Gems and Precious Stones of North America,” New York, 1892, p. 144.
[480]. Leipsic, 1866.
[481]. Kohut, loc. cit., p. 25.