880 



INDEX. 



Hsematoporphyrin, 191 

 Haamatin, 190 

 Hasmin, 191 



chemical properties of, 191 



crystals, 190 



tests for, 191 

 Haemochromogen, 194 



spectrum, 194 

 Haemoglobin, 188 



amount, 194 



characteristics, 188 



composition, 188 



crystallization, 187 



estimation of percentage, 195 



reduced, 190 



variations in amount, 190, 194 

 Haemolysins, 178 



physiological analogy, 178 

 Haemometer, 195 



Dare's, 197 



Von Fleischl's, 195 

 Haemorrhage, 208 



effects of, 208 



quantity of blood in, 208 

 Hair, 7S4 



chemical composition, 735 



function, 735 



general description, 735 

 Hale's blood-pressure experiments, 299 

 Hay's test for bile, 115 

 Hearing, 749 



anatomy of organ of, 749 



auditory nerve, 757 



binaural audition, 767 



Eustachian tube, 762 



general description, 749, 750 



organ of Corti, 756 



semi-circular canals, 768 



sense of, 725 



theory of, 766 

 Heart, 221 



accelerator center, 269 



action of vagus on, 261 



areas of audibility, 245 



arteries, 247 



auricles, 228 



causes of sounds, 244 



changes in shape and position, 233 



chordae tendineae, 225 



course of blood in, 229 



diphasic variation of, 593 



effects of drugs on, 271 



endocardium, 225 



foramen ovale, 222 



foramina Thebesii, 222 



frequency, 248 



ganglia of, 251 



H's's muscular bundle, 255 



histology of, 226 



innervation of, 251 



lymphatics of, 222 



minimal stimuli, 272 



moderator center, 261 



movements of, 231 

 to clinicians, 231 

 persistence of, 241 



muscles of, 221 



musculi pectinati, 222 



myocardium, 224 



nerves of, 260 



nutrition of, 247 



papillary muscle, 224 



position of valves, 245 



refractory period of, 273 



revolution of, 234 



rhythm of, 252 



sinus of Valsalva, 225 



size and shape of, 221 



sounds of, 242, 243, 244 



stair-case contraction, 273 



Heart, Stannius's experiments, 272 

 stimuli, 272 

 structure of, 225 

 sympathetic fibers to 269 

 valves of, 225 

 mitral, 225 

 position, 245 

 semilunar, 225 

 tricuspid, 224 

 ventricles of, 229 

 work of, 249 

 Heat (see temperature), 

 animal, 506 

 estimation of, 513 

 latent, 507 

 other sources, 508 

 radiant, 507 

 theory of, 507 

 Heat-spots, 733 

 Heat value of food, 500 

 Heat unit, 513 

 calorie, 513 

 calorimeter, 514 



Height, relation to lung capacity, 354 

 Helicotrema, 755 

 Heller's nitric acid test, 459 

 Hematoporphyrin, 191 

 Hemianopsia, 818 

 Heidenhain's lymphagogues, 162 



theory of secretion, 162 

 Hensen's cells, 757 

 Hensen's disk, 532 

 Heredity, 867 



Hering's theory of color, 807 

 Hiatus, 755 

 Hibernation, 510 

 Hiccough, 378 

 Hippuric acid, 449 

 formation of, 449 

 where secreted, 449 

 His's muscular bundle of heart, 255 

 Histology, 3 

 Histones, 38 

 Hoarseness, 572 

 Hormone, 80, 101 

 Horopter, 803 

 Hunger, 132 

 Hyaloplasm, 9, 596 

 Hydraemia, 211 

 Hydrochloric acid, 75 

 ion theory of, 77 

 stimuli for secretion, 77 

 test for (Giinsberg), 87 

 Hydroxamino acids, 108 

 Hypermetropia, 796 

 Hyperosmia, 747 

 Hyperphoria, 811 



Hyperpyrexia, cause of death, 527 

 Hypoblast. 855 

 Hypoglossal nerve, 840 

 anastomoses, 840 

 origin, 840 

 pathology, 840 

 physiology, 840 

 Hypoxanthin in urine, 450 



IGNOTIN, 40 



Ileocaecal valve, 93 



Ilium, 89 



Image, formation on retina, 803 



Immunity, 213 



Inanition or starvation, 495 



Incus, 753 



Indican, 453 



test for, 453 



Indigestible residue of faeces, 130 

 Ind-'rect cell-division, 20 

 Indol, 128, 130, 453 

 Infprior vermiform process, 685 

 Infundibulum, 342 



