Nitrated carbohydrates, lead compounds of, 49 Nitrates of carbohydrates, 41 Nitrocellulose (_see_ Cellulose nitrates); silk, 55 'Normal' cellulose, definition of, 27 Normal paper, 160 Oxycellulose esters, 72; nitration of, 43; researches on, 71, 72, 74; _resume_ of properties, 94 Oxygluconic acid, 117 Paper, deterioration of, 155; normal standard, 160; pulp, spinning of, 169 Peat, constituents of, 154 Pectins, 151, 152 Pentosanes, 100, 109, 144; constituents of cotton, 124; constituents of fodder, 122; estimation of, 121; of seeds during germination, 124 'Permanent tissue,' 103 Phloroglucinol, 119, 121 Plant tissues, carbohydrates of, 96, 97, 99 Plants, source of unsaturated compounds in, 145 Powders, manufacture of sporting, 52 Saccharification of cellulose and derivatives, 73 Schulze method of cellulose estimation, 18, 98 Schweizer solution, 101 Seeds, pentosanes in germinating, 124 Silica in plant tissues, 13 Silk, artificial, 54, 62, 63, 172; bibliography of, 60; from cuprammonium, 58, 64, 173; from nitrocellulose (collodion), 55, 63, 172; from viscose, 59; from zinc chloride, 59; reactions of, 64 ---- natural, reactions of, 64 Straws, 101, 105 Succinic acid from furfural, 118 Sulphite waste liquors, 149, 164 'Swedish' filter paper, 14 Tissue constituents, 99, 109 Trees, composition of trunk woods, 142 Viscose and viscoid, 157, 158, 159 ---- silk, 59, 175 ---- ---- specific gravity of, 34 (_refer also_ Cellulose sulphocarbonate) 'Vulcanised fibre,' 20 Weende, method of cellulose estimation (crude fibre), 17, 98 Welsbach mantles, 14; Clamond type, 15 Wheat grain, insoluble carbohydrates of, 137 Wood, alcohol from, 146, 148 Wood-cellulose, waste liquors, 149 Wood-gum, 144 Wood-pulp, processes, 162 Wood, trunks of trees, 142 Yeast, carbohydrates of, 113 Zinc chloride, artificial silk, 59; solvent action of, 20