INDEX. 



Tenite, 245. 



Yttria, Phosphate of, 208. 

 Yttrium ores, 206, 208. 

 Yttro-cerite, 206. 

 Yttro-tantalite, 208. 

 Yttro-ilmenite, 229. 

 Yttro-titanite, 212. 



Z. 



Zaffre,.268. 

 Zeagonite, 168. 

 Zeolites, 163. 



Iron, 246. 

 Zeuxite, 172. 

 ZINC, 269. 



Zinc, alloys of, 275, 27 o. 



Carbonate of, 212. 



Red oxyd of, 270. 



Silicate of, 272. 



Sulphate of, 271. 



Sulphuret of, 269. 

 Zinc blende, 269. 

 Zinc bloom, 272. 

 Zinc ores, general remarks on, 27S 



Reduction of, 274. 

 Zincite, 270. 

 Zinkenite, 223. 

 ZIRCONIA, 200. 

 Zircon, 200. 

 Zirconite, 201. 

 Zoisite, 183. 

 Zygadite, 182. 



EftBATUii. — On page 156, 15th line from the bottom, reed 

 mina, 29*8,* ioviead of " alumina, 2'S.* 



i 8 6 7 7 



