CHAPTER XIII.

SYMBOLIC MOUNDS. The Wisconsin Region—Animal Mounds—Symbolic Mounds—Big Elephant Mound—Dade County Mounds—Magnitude of Earthworks—Enclosed Works of Art—Rock River Works—The Northern Aztalan—Ancient Garden Beds—The Wisconsin Plains—A Sacred Neutral Land—The Alligator Mound—The Great Serpent, Ohio—Serpent Symbols—Intaglio Earthworks—Suggestive Inferences—The Ancient Race—A Sacerdotal Caste—Antiquity of the Race—Inferiority of the Indian Tribes, 303