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

Published in 1888, 'Aids to the Study of the Maya Codices' by Cyrus Thomas is a seminal work that provides crucial insights into the deciphering of Maya manuscripts. This report, part of the Bureau of Ethnology's annual documentation, focuses on the numerals, characters, and structures of the Maya codices, particularly the Dresden Codex. Thomas critiques previous decoding attempts and highlights the complexities of these ancient texts, making it an essential resource for scholars of American paleography and Maya language.