Clubs.
Knight, E. H. Report of the Smithsonian Institution, 1879, p. 214. 1879.
Combs.
Nelson, E. W. Report of the Bureau of Ethnology, 18, p. 57. Eskimo. 1896–97.
Laidlaw, G. E. American Archæologist, 1899, p. 16. 1899.
Thalbitzer, W. Meddelelser on Grönland, vol. XXVIII pp. 467 ff. East Greenland. 1909.
Cones.
Brown, C. E. Wisconsin Archeologist, 1909, pp. 139 ff. Wisconsin. 1909.
Copper.
Atwater, C. Archæologia Americana, pp. 162, etc. 1820.