[376] Ibid., p. 347.

[377] “A Remarkable Jadeite Adze,” American Association for the Advancement of Science. Kunz, “Gems and Precious Stones of North America,” New York, 1890, pp. 278-280.

[378] “Nephrit und Jadite,” Stuttgart, 1880.

[379] The Bishop Collection, “Investigations and Studies in Jade,” New York, 1906, vol. i, pt. iii, “Jade as a Mineral,” by George Frederick Kunz, p. 177. This immense mass of nephrite which forms part of the Heber Bishop Collection loan of jade is now in the American Museum of Natural History, New York.

[380] Kunz, “Chalchiuitl: a note on the jadeite discussion,” Science, vol. xii, No. 298.

[381] Gesneri, “De figuris lapidum,” Tiguri, 1565, fol. 107 verso, 108 recto.

[382] “De ornatu oris, nasi et aurium,” Gottingæ, 1832, p. 43.

[383] “Handbook of American Indians North of Mexico,” ed. by Frederick Webb Hodge; Smithsonian Inst., Bur. of Am. Ethn. Bull. 30. Pt. I, p. 458; Washington, 1910.

[384] “Historia de las Indias,” in “Bib. de autores españoles,” vol. xxii, Madrid, 1852, p. 202.

[385] Sahagun, “Historia general de las cosas de Nueva España,” Mexico, 1829, vol. ii, pp. 389-391, lib. ix, cap. xvii.