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

Published in 1884, 'Notes on Certain Maya and Mexican Manuscripts' by Cyrus Thomas is a historical and ethnological study that examines ancient Maya and Mexican manuscripts, particularly their symbolism and calendrical systems. The work analyzes significant plates from the Codex Cortesianus and the Borgian Codex, aiming to connect the cultures through their written records. Thomas highlights the importance of the 'Tableau des Bacab' and the representation of gods associated with the cardinal points, emphasizing the need for a nuanced interpretation of these intricate texts to understand Mesoamerican beliefs and practices.