ABSTRACT
There is a preface (three folios) by Chang Keng ~}jf, another (five folios) by Lin I-chiin **-{~ (tzu fflil) and a last one (two folios) by Li Chiu-piao *t[A~ (tzu ~W). Then follow directions to the readers (one and one-half folio) and a general table of contents (one folio), which reaches only chiian 6. A more specific table of contents is found at the beginning of each chiian, which gives a short description of each item and the number of the corresponding folio.
