362 



INDEX. 



Hearing, influence of external ear on, ii, 

 179 



of labyrinth, ii, 191 



of middle ear, ii, 187 

 physiology of, ii, 185 



See Sound, Vibrations, etc. 

 Heart, i, 103-129 

 action of, i, 111 



accelerated, i, 127 



effects of, i, 124 



force of, i, 122 



frequency of, i, 122 



inhibited, i, 126 



after removal, i, 126 



rhythmic, i, 125 



work of, i, 124 



auricles of, i, 105, 111. See Auricles, 

 capacity, i, 107 

 chambers, i, 104 

 chordae tendineae of, i, 110 

 columnse carneae of, i, 105, 110 

 course of blood in, i, 108 

 development, ii, 276 

 endocardium, i, 105 

 force, i, 146 

 frog's, i, 124 

 ganglia of, i, 125 

 impulse of, i, 119 



tracing by cardiograph, i, 119, etseq. 

 influence of pneumogastric nerve, i, 

 126 



of sympathetic nerve, i, 127 

 investing sac, i, 103 

 muscular fibres of, i, 107 

 musculi papillares, i, 109, 113 

 nervous connections with other organs, 

 i, 127 



rhythm, i, 126 



nervous system, influence on, i, 124 

 revolution of, i, 117 

 situation, i, 103 

 sounds of, i, 117 



causes, i, 118 

 structure of, i, 107 

 tendinous cords of, i, 109 

 tubercle of Lower in, i, 105 

 valves, i, 109 



arterial or semilunar, i, 110 

 function of, i, 114 



auriculo-ventricular, i. 109 



function of, i, 112 

 ventricles, their action, i, 112 



capacity, i, 107 

 weight of, i, 107 

 work of, i, 124 

 Heat, animal, i, 309. See Temperature. 



influence of nervous system, i, 316 

 of various circumstances on, i, 309, 

 et seq. 



losses by radiation, etc., i, 313 



in relation to bile, i, 278 

 sources and modes of production, i, 312 

 developed in contraction of muscles, i 



309, 312 

 perception of, ii, 166 



Heat centres, i, 316 

 Heat-producing tissues, i, 312 

 Heat or rut, ii, 240 



analogous to menstruation, ii, 240 

 Height, relation to respiratory capacity, 



i. 189 



Helicotrema, ii, 183 

 Helix of ear, ii, 179 

 Hemipeptone, ii, 329 

 Hemispheres, Cerebral, ii, 120. See Cere- 

 brum. 

 Hepatic cells, i, 268 



ducts, i, 271 



veins, i, 270 

 characters of blood in, i, 87 



vessels, arrangement of, i, 269, et seq. 

 Herbivorous animals, 



perception of odors by, ii, 178 

 Hering's theory, ii, 224 

 Hermaphroditism, apparent, ii, 305 

 Hibernati n, state of thymus in, ii, 6 

 Hiccough, mechanism of, i, 200 

 Hip-joi t, pain in its diseases, ii, 84 

 Hippuric acid, i, 361, 372; ii, 332 

 Horse's blood, peculiar coagulation of, i, 



66 



Howship's lacunae, i, 44 

 Hunger, sensation of, i, 218 

 Hya ine cartilage, i, 38 

 Hydrogen, ii, 325 

 Hydrolytic ferments, i, 230; ii, 335 

 Hvmen, ii, 239 

 Hyperaesthesia, 



resuit of injury to spinal cord, ii, 99 

 Hypermetropia, ii, 212 

 Hypoblast, ii, 255 

 Hypoglossal nerve, ii, 150 

 Hypospadias, ii, 305 

 Hypoxanthin, ii, 334 



I. 



Ideas, connection of, with cerebrum, ii, 



128 



Ileurn, i, 254 

 Jleo-caecai valve, i, 263 

 Illusions of touch, i, 165 

 Image, formation of, on retina, ii, 204 



distinctness of, ii, 211 



inversion of, ii, 218 

 Impulse of heart, i, 119 

 Income of body, ii, 64 



compared with expenditure, ii, 64 

 Incus, 



function of, ii, 181 

 Indican, i, 362 

 Indigo, ii, 335 

 Indol, i, 267 

 Induction 



coil, ii, 27 



current, ii, 27 

 Tnfundibulum, i, 180 

 Inhibitory influence - f pneumogastric 

 nerve, i, 126 



