NOTES ON CHINESE MATERIA MEDICA. 219 



186062. 



MAGNESIAN AND ALUMINOUS SUBSTANCES. 



5 Yin-tsing-slilh ; Silvery-white Mica. Pun-tsaou Magnesianand 

 Fig. 54. I have also received a transparent green mica under the 

 same name. 



~Z- 5! ty Kin-tsing-shXh ; Brown Mica. Pun-tsaou, Fig. 54. 



ni HI/ Tsing-mung-sMk. Pun-tsaou, Fig. 56. 



-2- w ^ Kin-mung-sJiih ; Cim mdm xe, Cleyer, Med. 

 SimpL, No. 154. 



^ ^ ^S Yin-mung-sMJh. This substance, and the two pre- 

 ceding, are micaceous earths. 



JJ[| TR ^5 Kwei-hw8-shih ; Steatite or Soapstone ; Silicate 

 of Magnesia. Hwa-sMh, Pun-tsou, Fig. 31. A friable, greyish- 

 white variety : the so called Soapstone, from which the Chinese 

 often carve beautiful ornaments, is a silicate of alumina, known 

 to mineralogists as Agalmatolite. 



7$L ^vy Hung-sha. This substance is in the form of coarse 

 reddish-brown sand, which, when examined with a lens, is seen 

 to consist of transparent angular fragments, mostly of a pale 

 pinkish hue, mixed with some of a yellowish-brown, or more 

 rarely greenish-black. Sp. gr. 3*848. Professor Guibourt con- 

 siders it is probably some variety of garnet reduced to powder, 

 and in the absence of positive information I have therefore 

 placed it among the aluminous substances. 



?Na[ fi-f 'M Fei-hw8-shih. An argillaceous earth, of a pale 

 yellowish colour, soft to the touch, and formed into little, rect- 

 angular, oblong blocks. 



^ 'PJ JJ0 Chlh-sMh-che. An aluminous earth, of a pale 

 pinkish colour, or white, in soft, friable, irregular masses. It 

 has been examined by Mr. J. Morland, jun., whose analysis 

 shows its composition to be nearly that of Kaolin. The two 

 are as follows : 



