Studies in Spermatogenesis (Part 2 of 2)

Studies in Spermatogenesis (Part 1 of 2)

Studies in Central American Picture-Writing First Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1879-80, Government Printing Office, Washington, 1881, pages 205-245

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