Designed to be used after either Beginning or Intermediate Chinese, this work is based on recordings of twenty lectures on academic topics in pinyin Romanization.  The new material in each lesson is presented in illustrative sentences and dialogues between student and teacher.  Additional material includes grammar drills, review exercises, questions, recapitulations of the lectures, and notes, plus 45 illustrations, a combined glossary, and an index. Yale Linguistics Series.John DeFrancis is research professor of Chinese at Seton Hall University.