908 



INDEX 



HAEMOGLOBIN. 



Haemoglobin, 61, 370, 424, 454 

 analysis of, 461 

 and carbon monoxide, 403 

 compounds of, 465 

 crystallisable, 424 



crystals of, and how to obtain them, 462 

 dissociation curve of, 367, 370 

 distribution, 461 

 estimation of, 470 



increase in the blood at high altitudes, 402 

 photographic spectrum of, 468, 469 

 reaction with oxygen, 367 

 solution of, 367, 368 

 Hsemoglobinometers, 470, 471 

 Hsemoglobinuria, 603 

 Haemolymph glands, 336 

 Haemolysins, 475 

 Haemopyrrol, 464 

 Hair-cells, 754, 794 

 Hair-folHcles, 605, 606 

 Hairs, 605 



structure of, ib. 



Haldane's apparatus for estimating the carbonic 

 acid and aqueous vapour given off by an 

 animal, 393 

 carbonic oxide method of estimating oxygen 



tension of arterial blood, 374, 375 

 Haldane and Priestley's method in dealing with 



respiration, 375 



Haldane's measurement of air breathed, 358 

 Haldane's modification of Gowers' haemoglobin- 



ometer, 445 



Hales' investigations on blood-pressure, 271 

 Hallucination, 764 

 Hamburger's experiments with Succus entericus, 



523 



Hammer bone, 788, 789 

 Hamulus, 792 



Hannover's stratum intermedium, 58 

 Haptophor groups, 475 

 Hardy, microscopic structure of cells, 8 

 Harvey on circulation of the blood, 227, 234 

 Hassall, concentric corpuscles of, 336, 337 

 Hausmann's method of analysing proteins, 



423 

 Haversian canals, 42, 43 



lamella, 44 , 



Head's experiments, 378, 379, 705 

 Hearing, anatomy of organ of, 788 et seq. 

 influence of external ear on, 794 



of middle ear, ib. 

 physiology of, ib. 

 range of, 797 



See Sound, Vibrations, etc. 

 Heart, 208 et seq. 

 action of, 

 accelerated, 253 

 force of, 247 

 frequency, ib. 

 inhibited, 253 

 isolated, 260 

 self-steering, 238 

 auricles of, 209-212 

 block, 246, 257 

 chambers, 209 



capacity of, 212 



chordae tendineae of, 213, 234, 236 

 columnse carnese of, 212 

 conduction in the, 254 

 course of blood in, 214 

 cycle, 232 

 endocardium, 209 

 excised mammalian, 261 

 force, 245 



frog's, 230, 231, 259 

 nerves of, 251 



HERTZ ON THE PROCESS OF DIGESTION. 



Hear t continued 

 ganglia of, 255 



gaseous exchanges during inhibition, 254 

 influence of drugs, 253 



of sympathetic nerve, 251 

 innervation, 249 

 intracardiac pressure, 240 

 investing sac, 208 

 muscular fibres of, 68 

 musculi papillares, 214, 234 

 nervous system, influence on, 249 

 output of, 247 

 pericardium, 208 

 physiology, 232 et seq. 

 plethysmograph, 260 

 reflex inhibition, 253 

 situation, 208 

 size and weight, 212 

 sounds of, 235, 245, 246 



structure of, 212 

 valves, 210, 213 

 auriculo-ventricular, 210-212, 234, 236 



function of, 234 

 semilunar, 210, 212, 214, 235 



function of, 235 

 structure, 209 et seq. 

 ventricles, their action, 209-212 

 work of, 247 



Heat, animal. See Temperature, 

 influence of nervous system, 640 



of various circumstances on, 637 

 losses by radiation, etc., 638-641 

 regulation of, 640 

 value of foods, 634 

 variations of, 636 

 Heat and cold spots, 773 

 Heat coagulation, 423, 424, 426 

 Heat contraction, 164 

 Heat production, 637, 638, 640 

 Heat-rigor of muscle, 139 

 Heat-value of food, 634 

 Heidenhain's researches, 320, 578, 579 

 Held, experiments on myelination, 740 

 Helicine arteries, 866 

 Helicotrema, 792 

 Heller's nitric-acid test, 601 

 Helmholtz'a induction coil, 91, 92 

 myograph, 87, 92, 104, 108 

 phakoscope, 825 

 resonance theory, 798 

 Helweg's bundle, 656, 657 

 Hemianopsia, 737 

 Hemiplegia, 729 

 Hemisection of spinal cord, 659 

 Hemispheres, cerebral. See Cerebrum. 

 Henle, fenestrated membrane of, 219 

 layer of, 606 



on muscles of the larynx, 803 

 sheath of, 77 

 tubule of, 567 



Henry-Dalton law for gases, 326 

 Hensen's line or disc, 65, 67 

 Hepatic artery, 527 

 Hepatic cells, 527 

 colic, 535 

 duct, 527 

 glycogen, 615 

 veins, S27, 529 

 Herbst, corpuscles of, 766 

 Bering's experiments on blood circulation, 289 



290 



Bering's theory of colour, 842, 843 

 Herrmann's current of rest, 122, 123 



haematoscope, 466 

 Hertz on the process of digestion, 555 



