[21] Peter Martyr, op. cit., vol. II, pp. 196-197.
[22] Saville, Goldsmith’s Art in Ancient Mexico. The inventories of the loot obtained by Cortés are given in English translation on pp. 56-102.
[23] This is quoted from the study of Dr. J. Cheston Morris on the “Physical and Technographical Characteristics” of the leaves, in the article, “The Tribute Roll of Montezuma,” edited by Dr. Daniel G. Brinton, Henry Phillips, Jr., and Dr. J. Cheston Morris, published in Transactions of the American Philosophical Society, vol. XVII, N. S., pt. II, art. IV, p. 61, Philadelphia, 1892.
[24] The very important Crónica Mexicana, written by Hernando Alvarado Tezozomoc, was published by José M. Vigil in his Biblioteca Mexicana, Colección Metódica de Obras y Documentos Relativos a la Historia, Geografía, Literatura, Estadística y Legislación de México, 1881. The quotation is from cap. LXXVI, pp. 543-544.
[25] Tezozomoc, op. cit., cap. LXXXIX, p. 600.
[26] Dr. George F. Kunz has kindly placed in our hands his publications relating to precious stones. In this connection consult his Gems and Precious Stones, New York, 1892; his important paper, New Observations on the Occurrences of Precious Stones of Archæological Interest in America (extrait des Mémoires et Déliberations du XVᵉ Congrès des Américanistes tenue à Québec du 10 au 15 Septembre 1906, Quebec, 1907); and Gems and Precious Stones of Mexico, Mexico, 1907.
[27] The work of Rafael Aguilar y Santillan is entitled Bibliografía Geológica y Minera de la República Mexicana completada hasta el año de 1904, Boletín del Instituto Geológico de México, núm. 17, Mexico, 1908.
[28] The interesting study of Luigi Pigorini describing the Mexican mosaics in Rome is entitled Gli Antichi Oggetti Messicani Incrostati di Mosaico esistenti nel Museo Preistorico ed Etnografico di Roma, Reale Accademia dei Lincei, Rome, Anno CCLXXXII, 1884-85, 3ª serie, vol. XII, pp. 1-9, I pl. with 5 colored illustrations.
[29] The important study by Joseph E. Pogue, The Turquois. A Study of its History, Mineralogy, Geology, Ethnology, Archæology, Mythology, Folklore, and Technology, appears as the third memoir of Vol. XII, Memoirs of the National Academy of Sciences, Washington, 1915.
[30] Fray Bernardino de Sahagun, Historia General de las Cosas de Nueva España que en Doce Libros y Dos Volúmenes Escribió el R. P. Fr. Bernardino de Sahagun, published by Carlos María de Bustamante, 4 vols., Mexico, 1829. Also published by Lord Kingsborough. The quotations are from the Bustamante edition, tomo III, lib. II, cap. VII, p. 284, and cap. VIII, pp. 296-297.