CHAPTER IV.
ANCIENT INDIAN MOUNDS AND EARTHWORKS IN OHIO. — Earthworks of the Mound Builders and their geographical position. — Miamisburgh Mound. — Grave Creek Mound. — Ages and contents of burial mounds. — Rectangular, circular and octagonal Inclosures near Newark. — Marietta Earthworks. — Discoveries made in a burial mound. — Fortifications near Portsmouth. — Encampments in the valley of the Scioto 55