Montgomery, H. American Anthropologist, vol. 8, n. s., p. 648. Dakota. 1906.
Boas, F. Bulletin of the American Museum of Natural History, vol. 15, pt. 2, pp. 383 ff., and frequently. 1907.
Barbour, E. H. Records of the Past, 1907, pp. 44 ff. 1907.
Winchell, N. H. Records of the Past, 1907, p. 156. Nebraska Loess. 1907.
Hough, W. Bulletin of the Bureau of Ethnology, 35, p. 23. South West. 1907.
Brown, C. E. Wisconsin Archeologist, 1907, p. 68. Wisconsin Caches. 1907.
Spinden, H. J. Memoirs of the American Anthropological Association, vol. 2, pt. 3, p. 189. Nez Percé. 1908.
Moorehead, W. K. Bulletin of the Phillips Academy, Andover, 4, p. 98. Fort Ancient. 1908.
Lowie, R. H. Anthropological Papers of the American Museum of Natural History, vol. 2, pt. 2, p. 173. Northern Shoshone. 1909.
Bowls.