Title: 古音說略
Description: Gong 15 zhang. Jiang shu kao ding shang gu yin de chang shi, lun shu gu shou sheng, Shuo wen Guang yun zhong jian sheng mu zhuan bian de da shi ji shang gu sheng mu de ji ge te shu wen ti deng. Shu qian you xu he " 'qie yun' de yin zhi" yi wen.
Subjects: Chinese language, Phonology
Time periods: To 600