DIGESTIVE EXPERIMENTS to determine the amount of food the body uses, I 175 to determine percentage of waste in food, I 176 to determine amount of time required to pass through the body, I 176 to measure what percentage of food taken is digested, I 177 to determine what foods aid digestion, I 178 to determine what foods hinder digestion, I 178 to determine the laws governing the production of chemical harmony, I 178 to approximately determine the amount of undigested food, I 179 to determine the digestibility of each particular food, I 179 DIGESTIVE JUICES gastric juice, I 144 ---- composition of, I 147 ---- formation of, I 148 ---- action of, I 148 pancreatic juice, I 153 ---- composition of, I 153 ---- action of, I 154 amylopsin, properties of, I 154 trypsin, properties of, I 164 steapsin, properties of, I 154 bile, I 153 ---- function of, I 153 pepsin, I 155 ---- action of, I 155 saliva, I 161 ---- secretion of, I 161 the influence of the mind upon the action of the, I 162 DIGESTIVE ORGANS chemical changes in, I 165 peristaltic action of, I 187 DISACCHARIDS cane sugar, I 112 beet sugar, I 112 maltose, I 113 lactose, I 113 DIGESTIVE TABLES inaccuracy of, I 145