Includes bibliographical references (pages [133]-163) and index.
Letter I. American Prehistoric Earthworks Not Designed for Defense -- Letter II. Their Builders Descended from the Same Race as the Hindus -- Letter III. Burial Practices Revealed by the Earthworks -- Letter IV. Natural Artifacts, Especially Shells; Oceanic Navigation in Antiquity -- Letter V. Manufactured Artifacts, Especially Pottery -- Letter VI. Other Manufactured Artifacts -- Letter VII. Calendarial Parallels -- Letter VIII. Parallels in Tradition, Customs, and Architecture -- App. I. Letter by Caleb Atwater and Author's Remarks on It -- App. II. Letters by C. S. Refinesque, Including His Sketches of Sites and Artifacts -- App. III. Review of Atwater by Rafinesque. Rafinesque on Archaeological Sites in Ohio. App. IV. Refinesque's 1824 List of Sites and His 1838 Description of Those in Four Counties