Note 24 — Chapter V · MOUNDS AND EARTHWORKS IN OHIO. Ancient Fortified Inclosures at Circleville.—Discoveries in a Burial Mound.—Alligator Totem near Newark.—Fort Ancient.—Age of Trees growing upon the Ramparts at Fort Hill.—Traditions.—Geometrical Ground Plans of Indian Inclosures.—Conclusions.
Reading edition
“Ancient Monuments of the Mississippi Valley,” pp. 19.