[82] See Illustration in H. H. Bancroft’s Native Races, IV, p. 711.
[83] Journal of the Anthropological Institute, l. c., p. 489.
[84] Cf. particularly Abbott, l. c., p. 237.
[85] l. c., p. 203.
[86] Bulletin, l. c., pl. III, fig. 22, and p. 17.
[87] Spherical and oval stones with a peripheral groove are implements of a very simple form and hence they lend themselves to different uses. The old copper fac-simile of a stone hammer in the Museum of Science and Art in Philadelphia shows conclusively for the region in which it was found, viz., Lake Titicaca, Pako Island, in Bolivia, that similar stones were used as hammers.
[88] Rau, Smiths. Contrib., No. 318, p. 27, fig. 110.
[89] Native Races, IV, p. 705.
[90] Sinkers provided with a hole and of like shape are in use among the Western Eskimos. See J. Murdock, in IX, Am. Rep. of Bur. of Ethnology, 1887 to 1888, p. 282, fig. 273. They are found in great numbers in the United States.
[91] l. c., pp. 398 and 234.