Henshaw, H. W. American Anthropologist, vol. 3, p. 103. 1890.

Thompson, E. H. Memoirs of the Peabody Museum, vol. I, p. 18. Yucatan. 1897.

Fewkes, J. W. Report of the Bureau of Ethnology, 22, p. 87. Pueblo. 1900–01.

Seler, E. Bulletin of the Bureau of Ethnology, 28, p. 59. Mexican Feather Work. 1904.

Willoughby, C. C. American Anthropologist, vol. 7, n. s., p. 506. New England. 1905.

American Anthropologist, vol. 9, pp. 70 ff. 1907.

Pearls.

Carr, L. Proceedings of the American Antiquarian Society, 1897, p. 65. 1897.

Pendants.

Thompson, E. H. Memoirs of the Peabody Museum, vol. 1, 2, p. 19. Yucatan. 1897.