[366-1] As the term "ideograph" is somewhat broad and comprehensive, it may be well enough to state that I use it as expressing that stage of symbolic writing where the picture characters have so changed that all resemblance to the objects they were originally intended to represent is lost, and therefore they can only be considered as mnemonic signs. [367-1] Study of the Manuscript Troano, by Cyrus Thomas, pp. 142, 143. [370-1] Study of the Manuscript Troano, p. 147. [370-2] Landa's Relacion, pp. 382, 383, Note 1. INDEX Adelung, J. C. cited 262 Aglio, Augustina, fac simile of Dresden Codex by 263-266 Böttiger, C. A., mention of Dresden Codex by 262 controversy with Abert concerning Dresden Codex 267 Brasseur, copy of the Manuscript Troano by 284, 286, 343 cited 350 Calendar system, tabular view of 270-374 Charency, H. de, cited 282 Codex Cortesianus, similarity of, to Manuscript Troano and Dresden Codex 286 Dresden Codex, numerals in 261-338 Ebert, F. A., description of Dresden Codex by 263 controversy with Böttiger concerning Dresden Codex 267 Falkenstein, K. C., preservation of Dresden Codex by 268 Fleischer, H. L., mention of Dresden Codex by 263 Förstemann, E., citation from Die Mayahandschrift of 261-269 cited 272, 278, 280, 281, 283, 290, 292, 293, 300, 301, 302, 303, 304, 305, 320, 322, 329, 330, 339, 340 Götze, J. C., preservation of Dresden Codex by 261 biographical sketch of 261, 262 Humboldt, A. von, notice of Dresden Codex by 262, 263 Kingsborough, Lord, Dresden Codex copied by order of 262 Mexican Antiquities of, cited 266 Landa, cited 348 Landa's alphabet, insufficiency of 259, 347 Manuscript Troano, copy of, by Brasseur 285, 286, 343 study of, by C. Thomas, cited 339, 343, 344, 345, 350, 365, 366, 367, 370 Maya and Mexican manuscripts, C. Thomas on, cited 280 Maya Codices, aids to the study of, by C. Thomas 253-371 Mexican Antiquities, by Lord Kingsborough, cited 266, 267 Rosny, L. de, cited 267, 347, 355, 357 Schellhas, P., cited 345, 359, 360, 361, 362, 364 Schultz-Sellack, K., cited 278 Silvestre, É., Paléographie universelle of, cited 267 Thomas, C., paper on aids to the study of the Maya codices by 253-371 Troano Manuscript, copy of, by Brasseur 285, 286, 343 Vater, J. S., cited 262 Transcriber's Note: