Hofmeister, experiments of, 305, 308, 309, 310, 311, 313, 314, 326, 327, 332 Hopkins, Dr. F. Gowland, 26; his paper upon the isolation of the tryptophane element of the proteid molecule, 47 _Hors d’œuvre_, 266 Horse, the, experiments upon, 293, 294, 300 Hospital Corps, the, at New Haven, xiii, 70 Hunger, 241; “the best sauce,” 254 Hyperacidity, 145 Hyperæmia, 345 Hyperchlorhydria, 144, 147 I “Igniting juice,” 260 Ignorance, dietic, sin of, xvii Ileocæcal valve, the, 355, 362; the competence of, 362-364, 367, 370, 376, 381, 387, 388 Ileum, the, 363, 364, 367, 370, 382, 387 India, 82, 128 Indians of Honduras, the, 124 —— of Nicaragua, the, 124 —— of North California, the, 122, 126 Indigestion, x; dangers of, xv; caused by anger and worry, 7; “bunching hits” to oppose, 13-16 Indol, the odourous, 47 Industries, the, mastication in, 124 Infant life, action of saliva in, 36 Innervation mechanism, an, constituent parts of, 184 Insalivation, defined, 8, 22; increases gastronomic enjoyment, 22, 46, 48; its striking effect upon appetite, 50, 60; effects of, 74, 89, 92, 93, 96; mastication promotes, 101 Insane, the, forced feeding of, 268 Instinct, human, the outcome of every-day experience, 251; physiology merely confirms the precepts of, 251; provisions for digestion made by, 267; demands of, 272 Intemperance, 95 International Congress of Physiologists, the, 26, 48, 56, 68, 91 —— Laboratory of Research, the, proposal to found, 55-69; suggestions as to staff and personnel, 62; estimate of initial outlay, 63; suggestions as to location, 63; suggestions as to management, 66 Intestinal anæmia, 345 —— canal, the, 39, 346 —— contents, the, rhythmic segmentation of, 347-355, 386 —— digestive juices, the, 361 —— mechanism, the, 385 —— movements, difficulties of investigating, 342; the best known of, 343 —— secretion, 61 —— wall, the, 344, 381, 386 Intestine, the large, activity of, 343; movements of, 364-377, 379, 386, 387, 388 ——, the small, 343, 346; the movements of, 347-362, 366; course of food in, 360-362, 365, 367, 369, 378, 381, 383, 385, 386, 387, 388 ——, the, action of the bacteria in, 39; micro-organic action in, 40, 80, 92; much more sensitive than the stomach, 139, 301, 317, 328, 337, 341; studied by means of the Röntgen rays, 342-388, 395 J Jaffa, Professor, 90; and the fruitarians, 397 Japan, 82 Jaws, the, mastication stimulates the nutrition of, 96, 103, 155; influence of mastication upon, 109, 148; changes during man’s evolution in, 115-121; instances of vigorous use, 122 Johns Hopkins University, 68 “Journal of Physiology, The” (American), 284, 301, 342 —— (English), 47 K Kais Root, 123 Kane, Dr., 125 Kara, 124 Katabolic action, 41 Katabolism, 95