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

A scientific publication written in the late 19th century. The text serves as a significant resource for scholars studying Maya codices, focusing particularly on deciphering their numerals, characters, and structures. Thomas aims to advance the understanding of these complex manuscripts, highlighting their significance in American paleography. The beginning of this work establishes the author's intent to provide new insights into the Maya codices, especially concerning their numerals and symbols. Thomas emphasizes that previous attempts to decode these manuscripts based on misconceptions, especially Landa's alphabet, have proven ineffective. He discusses the history of significant documents like the Dresden Codex and outlines the challenges faced in deciphering Maya scripts. The opening portion outlines the complexities of the codices, details previous scholarly findings, and sets the stage for a deeper exploration of the numerals, their meanings, and their relevance in the broader context of Maya civilization.