2. They are reckoned to be ten, and called the Shih Yî or 'Ten Wings.' They are in reality not so many; but the Text is divided into two sections, called the Number and Nature of the Appendixes. Upper and Lower, or, as we should say, the first and second, and then the commentary on each section is made to form a separate Appendix. I have found it more convenient in the translation which follows to adopt a somewhat different arrangement.
My first Appendix, in two sections, embraces the first and second 'wings,' consisting of remarks on the paragraphs by king Wăn in the two parts of the Text.
My second Appendix, in two sections, embraces the third and fourth 'wings,' consisting of remarks on the symbolism of the duke of Kâu in his explanation of the individual lines of the hexagrams.
My third Appendix, in two sections, embraces the fifth and sixth 'wings,' which bear the name in Chinese of 'Appended Sentences,' and constitute what is called by many 'the Great Treatise.' Each wing has been divided into twelve chapters of very different length, and I have followed this arrangement in my sections. This is the most important Appendix. It has less of the nature of commentary than the previous four wings. While explaining much of what is found in the Text, it diverges to the origin of the trigrams, the methods pursued in the practice of divination, the rise of many arts in the progress of civilisation, and other subjects.
My fourth Appendix, also in two sections, forms the seventh 'wing.' It is confined to an amplification of the expositions of the first and second hexagrams by king Wăn and his son, purporting to show how they may be interpreted of man's nature and doings.
My fifth Appendix is the eighth 'wing,' called 'Discourses on the Trigrams.' It treats of the different arrangement of these in respect of the seasons of the year and the cardinal points by Fû-hsî and king Wăn. It contains also one paragraph, which might seem to justify the view that there is a mythology in the Yî.
My sixth Appendix, in two sections, is the ninth 'wing,'—
