321,336Tartar emetic408Tartaric acid408Tellurium161Temporary hardness309Ternary acids113salts114Tetraboric acid265Thallium327Theory, atomic61definition64value of64Thermite331Thio compounds282Thiosulphates159Thiosulphuric acid159Thorium377Tin370block371compounds372crystals372family370foil371metallurgy370plate371properties371uses371Titanium257,264Topaz331Triad families166Tungsten388Type metal253,375Uranium388Valence116a numerical property116and combining ratios118and equations120and formulas120and periodic groups162and structure118definition116indirectly determined117measure of117variable117Vaseline400Venetian red349Verdigris407Vermilion363Vinegar406Vitriol, blue361green350oil of154white324Volume and aqueous tension25and pressure24and temperature23of combining gases194Water40a compound40and disease49catalytic action of154chalybeate351chemical properties53composition47composition by volume44composition by weight47dissociation of210distillation of50electrolysis of41,103filtration of51gas219hard309historical40impurities in48in air87mineral49occurrence48of crystallization 54,75physical properties53purification of50qualitative analysis41quantitative analysis42river49sanitary analysis50self-purification53softening of310standard substance55synthesis43uses of55Weights, atomic65Welsbach mantles219,377Whisky404Wine404Witherite312Wood alcohol402distillation402Wood's metal254Xenon80Yeast403Zinc321alloys of323blende321chloride325flowers of322metallurgy321occurrence321oxide324sulphate324sulphide325white324Zymase,403