Cyrus Thomas

The Problem of the Ohio Mounds

Day Symbols of the Maya Year / Sixteenth Annual Report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution, 1894-1895, Government Printing Office, Washington, 1897, pages 199-266

Aids to the Study of the Maya Codices / Sixth Annual Report of the Bureau of Ethnology to the / Secretary of the Smithsonian Institution, 1884-85, / Government Printing Office, Washington, 1888, pages 253-372

Notes on Certain Maya and Mexican Manuscripts / Third Annual Report of the Bureau of Ethnology to the / Secretary of the Smithsonian Institution, 1881-82, / Government Printing Office, Washington, 1884, pages 3-66

Burial Mounds in the North (Illustrated)

Native American Studies (22 Book Collection)

Day Symbols of the Maya Year

Aids to the Study of the Maya Codices

Notes on Certain Maya and Mexican Manuscripts