Toilet Soaps--Cold Process soaps--Settled Boiled Soaps--Remelted Soaps--Milled Soaps--Drying--Milling and Incorporating Colour, Perfume, or Medicament--Perfume--Colouring matter--Neutralising and Superfatting Material--Compressing--Cutting--Stamping--Medicated Soaps--Ether Soap--Floating Soaps--Shaving Soaps--Textile Soaps--Soaps for Woollen, Cotton and Silk Industries--Patent Textile Soaps--Miscellaneous Soaps. CHAPTER VIII. SOAP PERFUMES 95 Essential Oils--Source and Preparation--Properties--Artificial and Synthetic Perfumes. CHAPTER IX. GLYCERINE MANUFACTURE AND PURIFICATION 111 Treatment of Lyes--Evaporation to Crude Glycerine--Distillation--Distilled and Dynamite Glycerine--Chemically Pure Glycerine--Animal Charcoal for Decolorisation--Glycerine obtained by other methods of Saponification--Yield of Glycerine from Fats and Oils. CHAPTER X. ANALYSIS OF RAW MATERIALS, SOAP, AND GLYCERINE 117 Fats and Oils--Alkalies and Alkali Salts--Essential Oils--Soap--Lyes--Crude Glycerine. CHAPTER XI. STATISTICS OF THE SOAP INDUSTRY 140 APPENDIX A. COMPARISON OF DEGREES, TWADDELL AND BAUME, WITH ACTUAL DENSITIES 147 APPENDIX B. COMPARISON OF DIFFERENT THERMOMETRIC SCALES 148 APPENDIX C. TABLE OF THE SPECIFIC GRAVITIES OF SOLUTIONS OF CAUSTIC SODA 149 APPENDIX D. TABLE OF STRENGTH OF CAUSTIC POTASH SOLUTIONS AT 60 deg. F. 151 INDEX 153 CHAPTER I. INTRODUCTION. _Definition of Soap--Properties--Hydrolysis--Detergent Action._