In this companion volume to History and Mythology of the Aztecs, John Bierhorst provides specialists with a transcription of the Nahuatl text, keyed to the translation, and a linguistic apparatus to help elucidate it. The glossary offers definitions for all unusual usages in the codex, as well as careful treatment of many of the commonest (and most semantically flexible) verbs, adverbs, and particles. Detailed discussions of selected features appear in the Grammatical Notes, which complete the work.