The sign of the year (the rabbit) is shown merely by his head for brevity. The ten dots, which give its number, are beside it. Immediately beneath is a curious quadruped, with what are intended as water-drops dripping from him. The animal is the hedgehog, and the figure is to be constructed _iconomatically_; that is, it must be read as a rebus through the medium of the Nahuatl language. In that language water is _atl_, in composition _a_, and hedgehog is _uitzotl_. Combine these and you get _ahuitzotl_, or, with the reverential termination, _ahuitzotzin_. This was the name of the ruler or emperor, if you allow the word, of ancient Mexico before the accession to the throne of that Montezuma whom the Spanish _conquistador_, Cortes, put to death. Returning to the page from the chronicle, we observe that the hieroglyph of Ahuitzotzin is placed immediately over a corpse swathed in its mummy cloths, as was the custom of interment with the highest classes in Mexico. This signifies that the death of Ahuitzotzin took place in that year. Adjacent to it is the figure of his successor, his name iconomatically represented by the headdress of the nobles, the _tecuhtli_, giving the middle syllables of “_Mo-tecuh-zoma_.” No doubt is left that _La Piedra de los Gigantes_ of Escamela is a necrologic tablet commemorating the death of the Emperor Ahuitzotzin, some time in February, 1502. Mr. Eugène Boban (_a_) mentions manuscript copies, dating from the beginning of the century, of various sculptured stones in Mexico. These sculpturings represent native ideographic characters, among them the _teocalli_, the _tepetl_, the sign _ollin_, etc. On several of the plates which compose this collection are notes indicating the place where the monument, fragment, or ruin is found, from which the characters are copied; for example, one of them bears the note: “de la calle R^l de la villa de Cuernabaca.” Several others bear annotations which show that they have been copied in the cemetery, in the streets of that town, or in its environs. Aside from these notes the plates are not accompanied by any information which could give a trace of the person who drew them, or the purpose for which they were intended. The same author (_b_) describes a large sculptured stone of Mexico, the designs on which have been reproduced in paintings on deerskin. After giving a detailed description of the copied MS. he speaks of the stone as follows: