542 



INDEX 



Growth, 44, 219 

 Gum, animal, 30 

 Gustatory apparatus, 359 



cells, 359 



center, 73 



nerves, 359 



Gut. See Intestine, 107. 

 Gyri, 67 



HABIT, 413 



function' of, 414 

 Habitual voluntary movements, 388, 392, 



411 

 Hairs, 326 



sudden blanching of, 325 



uses of, 326, 354 

 Hallucinations, 425 

 Head-movements, 339 

 Hearing, 345 

 Heart, 278, 286, 288, 291, 293, 499 



accelerator nerves of, 294 



capacity of cavities of, 279 



cause of contractions of, 293 



changes in, in pregnancy, 444 



contraction of, always maximal, 500 



frequency of action of, 286 



ganglia of, 294, 499 



influence of respiration on, 114, 280 



inherent beat-rhythm, 501 



inhibition of, 295 



lymph-, 508 



of Daphnia, 466 



sequence, or cycle of, 288 



sounds, 291 



Stannin's experiments, 499 



tonus, 293, 299 



valves of, 275, 289 



work of, 279 

 Heart-cells, 278 

 Heart-centers, 297 

 Heart-muscle, 293, 278, 382, 499 

 Heart-walls, circulation in, 292 

 Heat : animal, 228 



and cold, relations of, to contraction, 

 495 



centers, 365 



mechanism of production of, 235 



sense, 364 



spots, 365 



unit, 142 



values of foods, 140 

 Height in childhood, 450 

 Hematin, 30, 256 

 Hemispheres, 63, 517 

 Hemoconia, 270 

 Hemoglobin, 113, 256 



compounds of, with oxygen, carbon 

 monoxide, and nitrous oxide, 257 

 Hemophilia, 260 

 Hepatic functions, 209, 210 

 Heredity, 47 . 



Hibernation, 236, 457 

 Hiccough, 125 



Homotlierms, 229 



Human digestive mechanism, 172 



temperature, 230 

 Hunger, 372 

 Hydra, 34 

 Hydrobilirubin, 253 

 Hydrochloric acid, 194 

 Hydrolysis, 178, 189 

 Hydrosol, protoplasm a, 25 

 Hylozoism, 18 

 Hypermetropia, 527 

 Hyperopia, 527 

 Hypophysis cerebri, 228 



IDEAS, 416 



Ideation, 414, 420 



Idiosyncrasy, 158 



Ileo-cecal valve, 209 



Ileum, 197 



Illusions, 425 



Immortality, 458 



Impregnation, 437 



Impulse, nervous, 97, 98, 511 



Incompetency of the aortic valve, 474 



of the mitral valve, 474 

 Individual death, 457 



differences in taste and smell, 364 

 Indol, 252 . , 



Induced electricity as a stimulus, 484 

 Inductorium, 470 . 

 Infancy, 449 

 Infundibula, 103, 1Q5 

 Infusion of salines, 275 

 Infusoria, 18, etc., 459, 461 

 mental process of, 421 

 Inherent beat-rhythm of heart, 501 

 Inhibition, 295, 516 



by afferent impulses, 513 

 "Inorganic" salts, 30, 33 



absorption of, 217, 218 

 excretion of, 246 

 metabolism of, 220 

 Inspiration, 108 



muscles of, 108 

 Instinct, 413 

 Intellection, 414, 420 

 Intelligence dependent on hemispheres, 



518 



Intercostal muscles, 108 

 Internal capsule, 64, 68 

 ear, 347 

 "radience," 399 

 secretions, 225 

 Intestinal digestion, 197 

 duration of, 199 

 juice, 207 

 movements, 199 

 villi, 198, 203 

 Intestine, large, 209 



movements of, 210 

 small, 197 



movements of, 199 



