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The Problem of the Ohio Mounds

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Burial Mounds of the Northern Sections of the United States

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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

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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

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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.

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Native Americans: History Books, Mythology, Culture & Linguistic Studies

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Burial Mounds of the Northern Sections of the United States