韻鏡中韻圖之結構

ON THE STRUCTURE OF THE RIME TABLES IN THE YUN -CHING韻鏡

(1) 本文認為韻鏡一書，主要採用韻圖的形式來闡明切韻一書的聲韻系統。(2) 本文據作者在一九六八年發表的論切韻音一文所訂切韻的聲韻系統略加修訂，用八個主要元音來擬構切韻的元音系統，並且採用等韻學中「內轉」、「外轉」和「攝」的名稱。「內轉」諸攝的主要元音是短而舌位較高的，「外轉」諸攝的主要元音是長而舌位較低的。(3) 本文說明韻圖中的三等韻有A、B、C三類，A、B類重紐的分別在於主要元音舌位的高低，C類具有央元音。(4) 本文批評橋本萬太郎中古漢語的音韻（Phonology Ancient Chinese, 1978-79）一書擬構梗攝諸韻具有舌面鼻音韻尾之說是不必要的，並且不贊成橋本用聲母顎化與否來區別切韻三等韻A、B類重紐的說法。

Since Bernhard Karlgren published his monumental work Etudes sur la phonologie Chinoise in 1915-26, Hashimoto Mantaro's Phonology of Ancient Chinese published in 1978-79 may be the most comprehensive work on the phonology of the Ch'ieh-yün (hereafter abbrev. as CY), which was compiled by Lu Fa-yen 陸法言 et al. in 601A.D. In Hashimoto (1978), Chapter II deals with traditional phonology, especially ''teng-yün-hsüeh'' 等韻學 (rime table studies); Chapter IV discusses the phonetic/phonemic transcriptions of Karlgren and other scholars; while Chapter V deals with distinctive feature phonology. In this paper, I will present my own reconstructions according to Chou (1968) with some revisions concerning the phonology of the CY as well as that of the rime tables in the Yün-ching 韻鏡 (hereafter abbrev. as YC).