The heart of this book is a series of etymological lessons, in which approximately 2300 Chinese characters are classidied according to 224 'primitives' upon which they are based. For each character Father Wieger gives the modern form, its archaic form, literary pronunciation (Wade system), explanations of origin, semantic content of component parts, related characters, variants forms, quotations of classical usage, and similar material. To make his book more useful Father Wieger has also incorporated a tremendous number of reading aids for the student - listings of the primitives; an index of the characters analyzed, arranged by number of strokes; a listing of 858 phonetic elements, arranged by number of strokes; a listing of about 10,000 characters by phonetic element; a lexicon by transliteration, comprising about 7,000 characters; and a lexicon of about 10,000 characters according to the customary modern system of 214 radicals devised by K'ang-hsi.