INDEX. 



315 



Tin 



arsenic, and antimony, 90 

 bismuth, and lead, 74 



Titanic acid, 171, 172, 173 

 iron, 172 



Titanite, 171 



Titanium and iron, 172, 174 



Topaz, 153 



Triphylite, 168 



Tungstic acid, 179, 181 

 and lime, 181 



Type metal, 80 



Ulexite, 146 

 Uraninite, 192 

 Uranium oxide, 192 



Vanadate of lead, 187 

 Vanadic acid, 185, 187 

 Vanadinite, 187 

 Valuation of manganese ores, 248 



of soda, 247 

 Vanadium, 185 



with iron, 204 

 Vegetable ashes, 231 

 Vitriol, blue, 53 



Volatile matters in silicates, 300 

 Volumetric analysis, 50, 52 



Water estimation, 15, 216, 225 

 Wavellite, 36 



Weights of compounds, equiva- 

 lent, 306 



of elements, equivalent, 304 

 Well waters, 216 

 Wet assay of iron, 50 

 White lead, 62 



Widmannstatten'a figures, 109 

 Wolframite, 178 

 Wood ashes, 231 

 Wulfenite, 181 



Yellow chrome, 189 

 Yttria, 165 



and erbia separation, '166 



Zinc blende, 55 



and cadmium, 60 ' . 



and copper, 59 



and iron, 64 



and nickel, 97 



carbonate, 57 



iron and manganese, 59 



sulphates of iron, copper, and, 

 58 



sulphide, 55 

 Zinkenite, 83 

 Zircon, 156 

 Zirconia, 156 



and iron, 157 



and silver, 157 

 Zirconium chloride, 157 



THE END. 



