Peet, S. D. American Antiquarian, vol. 19, p. 26. Distribution. 1897.

Wilson, T. Report of the United States National Museum, 1897, I, pp. 811 ff. A general discussion. 1897.

Poole, W. H. American Anthropologist, vol. 11, p. 45. 1898.

Willoughby, C. C. American Anthropologist, vol. 3, n. s., p. 431. Antler-pointed Arrows. 1901.

Wilson, T. American Anthropologist, vol. 3, n. s., pp. 513 ff. 1901.

L’Anthropologie, 12, pp. 568 ff. A classification. 1901.

Williston. International Congress of Americanists, p. 335. Kansas. 1902.

Moore, C. B. International Congress of Americanists, p. 40. Florida. 1902.

Dorsey, G. A. American Anthropologist, vol. 5, n. s., p. 644. 1903.

Smith, H. I. Memoirs of the American Museum of Natural History, vol. IV, p. 142. British Columbia. 1903.