INDEX. 



845 



Heart, force of action, 204 

 frequency of action, 203 

 impulse of, 196 

 influence of central nervous system 



on, 237 



of sympathetic on, 239 

 of vagus on, 237 

 metabolism of, 243 

 morphology of, 798 

 muscle, 88 



properties of, 232 

 nerves of, 234 

 origin of nerve -fibres, 239 

 regulation of force and frequency of 



contraction, 232 

 size of, 177 

 sounds of, 194 

 structure of, 177 

 valves of, 178 



action of, 190 

 weight of, 177 

 work of, 205 

 Heart-beat, electrical phenomena of, 243 



method of investigating, 241 

 Heat, animal, 449 



influence of extreme, 459 



of nervous system on, 457 

 loss from surface of body, 454 



through lungs, 455 

 -producing tissues, 452 

 production of body-, 451 

 regulation of body-, 453 

 variations in loss of, 453 

 in production of, 456 

 Hearing, 676 



physiology of, 684 

 Hemianopsia, 640 

 Henle's membrane, 45 

 Henson's disc, 85 

 Hetero-proteose, 362, 382 

 Hiccough, 279 

 Hind-brain, 585, 809 

 Hippocampus minor, 619 

 Hippuric acid, 477, 828 



formation of, 434 

 Homoiothermal animals, 450 

 Hyaloplasm, 9 

 Hydrobilirubin, 392, 478 

 Hydrocarbons, 826 



Hydrochloric acid, combined, 341, 360 

 test for free, 360 



Hypermetropia, 720 

 Hyperpncea, 292 

 Hypoblast, 22, 771 



organs developed from, 789 

 Hypoglossal nerve, 612 

 Hypoxanthin, 831 



ILEO-C^CAL valve, 376, 378 

 Income of energy, 444 

 Indican, 478, 832 

 Indigo, 832 



in urine, 478 

 Indirect cell division, 14 

 Inclol, 403, 832 

 Indoxyl, 403 



Induced electric currents, 5.08 

 Induction coil, 508 

 Inorganic foods, 329 

 Inosite, 125 

 Insalivatiou, 333 

 Inspiration, 261 

 forced, 263 

 muscles of, 262 

 quiet, 263 



Intercellular substance, 27, 41 

 Interlobular veins, 387 

 Internal capsule, 614, 630 



secretions, 312 

 Intestinal digestion, influence of nervous 



system on, 404 

 duration of, 404 

 secretion, 398 

 Intestine, large, 376 



glands of, 377 

 structure of, 377 

 small, villi of, 375 

 Intestines, 370 



action of bacteria in, 401 

 digestion in, 379 

 fermentation in, 402 

 gases in, 405 

 movements of, 403 

 putrefaction in, 403 

 Invertebrate, 825 

 Invertin, 398 

 lodothyrin, 314 

 Iris, 698 

 Island of Reil, 618 



JUDGMENTS, 659 

 KARYOKINESIS, 14 



