187 



198. ZINC SULPHATE. ZnS0 4 , 7H 8 0. 



a. Crystallized, impure. 



b. Ditto, pure. 



Note. It is impossible to distinguish this salt by sight from some 

 specimens of magnesic sulphate and sodic acetate. 



199. SULPHOCARBOLATE. Zn (C 6 H 6 S 4 ) 2 . 



a. Crystallized. 



* b. A fine mass of crystals. Presented by Messrs. Hopk in 

 & Williams. 



200. SULPHIDE. Zn S. 



a. White powder. 



201. VALERIANATE. Zn(C 5 H 9 O 2 ) 2 . 



a. Pearly crystalline powder. 



CADMIUM. Cd. 



202. METALLIC. 



a. Cylindrical sticks. 



203. BROMIDE. Cd Br 2 . 



0. Prismatic crystals. 

 204 CARBONATE. CdCO 3 . 



a. White powder. 

 205. CHLORIDE. CdCl 2 . 



a. Crystalline powder. 

 20G. IODIDE. Cd I 2 . 



a. Pearly crystalline scales. 



Note. This specimen has become slightly discoloured from the action 

 of light. 



207. SULPHIDE. Cd S. 



a. In yellow powder. 



COPPER. Cu. 



208. METALLIC. 



a. Pare. 



1. Turnings. 



c. Precipitated. 



209. ACETATB. Cu (C 3 H 3 2 ) 2 H 2 O. 



a. Crystals. 



b. Powdered. 



210. ACETATE, BASIC. 2Cu (C 2 H 3 2 ) 3 Ca 0, 6H 2 0. (Subacetatv 



of Copper.) 

 a. Crystals. 

 * I. Ditto, a column of crystals. 



