CHAPTER X.

THE MOUND-BUILDERS. Earth Pyramids—Monuments of the Mound-Builders—Seats of Ancient Population—Different Classes of Works—Ancient Strongholds—Natural Sites—Fort Hill, Ohio—Iroquois Strongholds—Analogous Strongholds—Fortified Civic Sites—Sacred Enclosures—Newark Eagle Mound—Geometrical Earthworks—Plan of Newark Earthworks, Ohio—A Standard of Measurement—Diversity of Works—Evidence of Skill—The Cincinnati Tablet—Scales of Measurement—Traces of Extinct Rites, 256