[81] Smithsonian Report, 1882, pp. 737-749.

[82] Id., pp. 730-749.

[83] Id., pp. 728-749.

[84] Squier and Davis’s Ancient Monuments of the Mississippi Valley, pp. 115, 116, plate xxxix.

[85] Smithsonian Report, 1881, p. 682.

[86] Catalogue of Prehistoric Works East of the Rocky Mountains, p. 177.

[87] Atwater, Transactions of the American Antiquarian Society, vol. i. (1820), pp. 193, 194; Howe’s Historical Collections of Ohio (1847), p. 413; Squier and Davis’s Ancient Monuments of the Mississippi Valley, pp. 88-90, fig. 20 and plate xxxi., No. 1, and p. 171, fig. 57, No. 3; MacLean’s Mound Builders, pp. 37-38, fig. 4; Shepherd’s Antiquities of the State of Ohio, p. 61.

[88] Twelfth Annual Report of the Bureau of Ethnology, p. 526.

[89] Id., p. 526.

[90] Id., pp. 525-526.