align="left">Mechanical separations

16 Dry assays 16     (a) Fluxes 16     (b) Reducing agents 21     (c) Oxidising agents 22     (d) Apparatus 24   CHAPTER III. WET GRAVIMETRIC METHODS. Wet gravimetric methods 27     (a) Solution 29     (b) Precipitation 30     (c) Filtration 31     (d) Drying and igniting 32   CHAPTER IV. VOLUMETRIC ASSAYS. Titrometric assays 35     (a) Standard solutions 36     (b) Standardising 37     (c) Methods of working 42     (d) Indirect titration 43 Colorimetric assays 44 Gasometric assays 44   CHAPTER V. WEIGHING AND MEASURING. Weighing 47 Measuring liquids 49     (a) Graduated flasks 49     (b) Pipettes 50     (c) Burettes 51 Measuring gases 52   CHAPTER VI. REAGENTS. Acids, &c. 54 Bases, salts, &c. 59   CHAPTER VII. Formulæ, equations, &c. 68   CHAPTER VIII. SPECIFIC GRAVITY. Introductory 75 Determination of specific gravity—     (a) Hydrometers 76     (b) Specific gravity bottles 78 Calculations depending on specific gravity 84