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    Colorimetric determination 247 Nickel 251     Dry assay 251     Electrolytic assay 254     Titration by cyanide 255 Cobalt 259 Zinc 261     Gravimetric method 262     Volumetric method 263     Gasometric method 266 Cadmium 269   CHAPTER XII. TIN, TUNGSTEN, TITANIUM. Tin 271     Vanning 273     Dry assay 276     Detection, &c. 279     Gravimetric determination 281     Volumetric determination 282     Examples 284 Titanium 292 Tungsten 295 Niobic and Tantalic Oxides 297   CHAPTER XIII. MANGANESE, CHROMIUM, ETC. Manganese 298     Gravimetric determination 300     Volumetric determination 300         Ferrous sulphate assay 301         Iodine assay 302     Colorimetric determination 306 Chromium 307 Vanadium 310 Molybdenum 311 Uranium 312   CHAPTER XIV. EARTHS, ALKALINE EARTHS, ALKALIES. Alumina 314 Thoria public@vhost@g@gutenberg@html@files@18751@[email protected]#Page_317" class="pginternal"