Produced by PM for Bureau of American Ethnology, Julia Miller, and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by the Bibliothèque nationale de France (BnF/Gallica) at http://gallica.bnf.fr) Transcriber's Note: This book was originally published as a part of: Powell, J. W. 1888 _Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-'85._ pp. 253-372. Government Printing Office, Washington, D.C. The index included in this version of the book was extracted from the overall volume index. A number of typographical errors found in the original text have been maintained in this version. They are marked in the text with a [TN-#]. A description of each error is found in the complete list at the end of the text. This text contains a number of tables. It is recommended that a fixed-width font be used so the tables display with the correct alignment. Tables XX, XXI, and XXII were too wide to fit within the character limits of the text file for this ebook. They have been broken into two parts. Special characters: The following special characters are used in this version of the book. If they do not display properly, try using a different font. ① Circled 1 ② Circled 2 ③ Circled 3 ④ Circled 4 ⑤ Circled 5 ⑥ Circled 6 ⑦ Circled 7 ⑧ Circled 8 ⑨ Circled 9 ⑩ Circled 10 ⑪ Circled 11 ⑫ Circled 12 ⑬ Circled 13 Ⓘ Circled I SMITHSONIAN INSTITUTION--BUREAU OF ETHNOLOGY. AIDS TO THE STUDY OF THE MAYA CODICES. BY PROF. CYRUS THOMAS. CONTENTS. Introduction 259 CHAP. I. The numerals in the Dresden Codex 261 II. Conclusions 339 III. The writing 345 Signification of the characters 347 Symbols of animals &c 348 Symbols of deities 358 Discussion as to phonetic features of the characters 365 ILLUSTRATIONS.