40 BOTANICON SINICUM. 
chen reviews in all 42 of such works of note on Materia medica, 
The Shen nung Pen ts‘ao king (1.), which we have already dwelt. 
upon and which forms the nucleus of all subsequent Chinese 
treatises on the subject, is placed at the head of the 42 works 
reviewed, the earlier of which, having long been lost, were known 
to Li Shi chen only from the accounts and quotations given of 
them by previous authors. After the Shen nung Pen ts‘ao the 
next in order of time is | 
2. The 38 #8 2% Ts‘ai yao Iu, directions for gathering drugs, 4 
in 2 books, by 4] # T*ung hiin, one of the ministers of the Em- © 
peror Hnang ti. ‘This treatise gives also some descriptive accounts 
of medicinal plants. q 
3. The F Zy He YB Lei kung Yao tui, Materia medica of Le | 
hung, who was one of the sages employed by the Emperor Huang ti 
in his labours to perfect the art of healing, This treatise, to which — 
tradition ascribes a high antiquity, was published (from an ancient a 
. Manuscript, I understand) in 2 books with additional remarks — 
and commentaries by #8 ~ sf Sii Chi ts‘ai, a celebrated phy- — 
sician living in the second half of the 6th century, a native of — 
Tan yang (Chin kiang fu). See his biography Pei Ts‘i shu 33. | 
4. The Ze Je HE #% Li shi Yao lu, Materia medica of Li or 
= Ew Lt Tang chi, a subject of the Wei dynasty, in the first © 
half of the 8rd century. He was a disciple of the celebrated Hua — 
To (see note 12). — 
5. The JG AS BL Wu shi Pen ts‘ao, Materia medica of Wu or — 
5k WG Wu P'u, a native of Kuang ling (present prefecture of — 
Yang chou fu in Kiang sn), likewise a subject of the Wei, first half — 
of the 8rd century, and a disciple. of Hua To. He compiled his 
treatise, one book, from the works of the Emperors Shen nung 
and Huang ti, and the writings of K% Po, Tung hiin (see above 
2), Lei kung (see above 8), Pien Tsao, Hua T‘0," Li Tang cht 
(see above 4), ee | 
12 The above names refer to ancient celebrated Chinese physicians, Besides the 
