《明史·志·卷四十九》
校书、正字掌管缮写装潢，说明书中的错误而调和其音韵反切，以辅助洗马。
校书、正字，掌缮写装潢，诠其讹谬而调其音切，以佐洗马。
Proofreaders and punctuation correctors take charge of proofreading and decoration, point out errors in the books, harmonize their pronunciations and rhymes to assist the Director of Education.