Calendar Stone.
Blake, W. W. Records of the Past, 1903, p. 16. 1903.
Carrying Industry.
Mason, O. T. American Anthropologist, 1889, pp. 21 ff. 1889.
Carvings.
Henshaw, H. W. Report of the Bureau of Ethnology, 2, pp. 123 ff. 1880–81.
Catlinite.
Brower. “Kansas Explorations,” pp. 33 and 64.
McGuire, J. D. American Anthropologist, vol. 5, pp. 168 and 173. 1892.
Montgomery, H. American Anthropologist, vol. 8, n. s., p. 645. Dakota. 1906.