---- ---- ---- of free acidity of, 117 ---- ---- ---- of iodine absorption of, 121, 122 ---- ---- ---- of saponification ---- ---- ---- equivalents of, 118 ---- ---- ---- of saponification value, 118 ---- ---- ---- of specific gravity of, 117 of titre of, 122, 123 ---- ---- ---- of unsaponifiable matter in, 119 ---- ---- ---- of water in, 120 ---- ---- ---- Yield of glycerine from, 116 Fatty acids, 9-13, 31 ---- ---- Classification of, 10 ---- ---- Direct combination with alkali of, 45, 46 ---- ---- in soap, Determination of, 131 ---- ---- ---- Examination of, 133, 134 ---- ---- Preparation by acid process, 19-21 ---- ---- ---- by ferment process, 16 ---- ---- ---- by Twitchell's process, 20 ---- ---- Saturated, 11 ---- ---- Unsaturated, 11 Fennel oil, 100 Ferment process for preparation of fatty acids, 16 Ferments, action of, 15-18 Ficocerylic acid, 10 Filling soap, 65 Fish oils, 30 "Fitting," 51 Floating soap, 90, 91 Fluorides in soap, 88 Formaldehyde soap, 88 Framing soap, 66 Free alkali in soap, Estimation of, 132 ---- caustic in soap, Neutralising, 66 ---- fat in soap, Determination of, 133 ---- fatty acids, Determination of, 117 G. Geraniol, 108 Geranium oils, 101 Geranium-sur-rose oil, 101 Ginger-grass oil, 101 Glycerides, 7, 8 Glycerine, Chemically pure, 115 ---- Crude, 113, 136-139 ---- decolorisation, 115 ---- distillation, 114 ---- Distilled, 114 ---- dynamite, 115 ---- in soap, Determination of, 134, 135 ---- manufacture, 111-114 ---- saponification, 116 ---- soaps, 89 ---- Yield of, from fats and oils, 116 Glycerol determination, acetin method, 136 ---- ---- bichromate method, 137, 138 ---- in lyes, Estimation of, 135 Goa-butter, 33 "Graining-out," 50 Grease, Animal, 30 ---- Bone, 30 ---- Kitchen, 30 ---- Skin, 30 Guaiac wood oil, 101 H. Halphen's reaction, 134 Heliotropin, 108 Hemp-seed oil, 29 Hyacinth, 108 Hyaenic acid, 10 Hydrated soaps, 48, 49 Hydrolysis accelerated by heat and electricity, 14, 15 ---- accelerated by use of chemical reagents, 19-23 ---- accelerated with acid, 19, 21 ---- Enzymic, 15-18 ---- of oils and fats, 13-23 ---- of soap, 3 Hypogaeic acid, 11 I. Ichthyol soap, 89 Inoy-kernel oil, 37 Iodine absorption of rose oil, 130 ---- absorption of oils and fats, 121,122: ---- soap, 89 Ionone, 108 Isolinolenic acid, 12 Isovaleric acid, 10 Isovalerin, 8 J. Jasmine, 109 Jecoric acid, 12 K. Kananga oil, 98 Kapok oil, 32 "Kastilis," 88 Kokum butter, 33 L. Lard, 25 Lauric acid, 10 Laurin, 8 Lavender oils, 101 Lemon-grass oil, 102 Lemon oil, 102 Lignoceric acid, 10 Lime oil, 102 ---- saponification, 22 Linaloe oil, 102 Linalol, 109 Linalyl acetate, 109 Linolenic acid, 12 Linolic acid, 12 Linseed oil, 29 Lipase, 18 Liquoring of soaps, 64 Lyes, analysis of, 135 ---- Determination of glycerol in, 135 ---- Evaporation of, 112 ---- Treatment of, 111, 112 Lysol soap, 89 M. Mafura tallow, 35