(Formerly numbered M15A.) Lecture, four hours. Enforced requisites: courses 5A, 5B, 5C. Course 15A is enforced requisite to 15B, which is enforced requisite to 15C. Taught primarily in Nahuatl. Examination of Nahuatl (Aztec) language of central Mexico at intermediate level. Coverage of Nahuatl grammar, with equal emphasis on reading, writing, conversation, and comprehension. P/NP or letter grading.