i nS 



INDEX 



Haematin acid, 75 



alkaline, 75 

 Haematocrite, 27, 68 

 Haematoidin, 379 

 Haematopoiesis, 20 

 Ha3matoporphyrin, 55, 76 



in urine, 477 

 Hacmin 55, 79 

 Hremochromogen, 54, 76 

 Haemoglobin, composition of, 50 



crystallization of, 52 



crystals, preparation of, 73 



curves of dissociation, 251, 252 



influence of carbon dioxide on, 253 



intracorpuscular crystallization of, 

 52 



quantitative estimation of, 76 



spectroscope examination of, 74 



spectrum of, 51, 53 

 Haemoglobinometer, 76 

 Haemoglobinuria, paroxysmal, 477 

 Haemolysis, 28, 71 



by foreign serum, 71 



m'echanism of, 29 

 Haemometer, 77 

 Haemophilia, coagulation in, 45 

 Haemorrhage and transfusion, influence 



of, on blood-pressure, 212 

 quantity of blood which may be 



lost in, 189 



Hair-cells of internal ear, 908 

 Haldane's apparatus for CO 2 , 298 



for H 2 O and CO 2 , 299 

 Harmonics, 304 

 Hay's test for bile-salts, 520 

 Head, transplanting of, 940 

 Hearing, 1024 



analysis of complex sounds, 1032 



beats, 1070 



cranial conduct sound, 1070 



monochord, 1070 



perception of pitch, 1033 



range of, 1035 



sympathetic vibration, 1070 



theories of, 1034 

 Heart, action current of, 806, 816 



' all or nothing 'law of, 154 



apex, preparation of, 192 



arrangement of fibres in, 87 



auricular flutter, 151 



automatism of, 142 



beat, 85, 192 



cause of, 141 



chemical conditions of , 152 

 neurogenic and myogenic hypo- 

 thesis of, 142 



standstill, action of augmentor 

 nerves in, 166 



conduction and co-ordination in, 146 



conductivity of, 142 



excitability of, 142 



extra systoles of, 155 



Heart, extrinsic nerves of, 156 

 ganglion cells of, 141-163 

 impulse of, 90 

 inhibitory nerves of, 210 

 inhibition of, 156 

 intrinsic nerves of, 141 

 muscle, action of inorganic salts on, 



198 

 nerves of, 201 



augmentor, 157, 162 



extrinsic, 157 



in frog, 194 



inhibitory, 157, 162 



intrinsic, 141, 157 

 of Limulus, 143 

 of mammalian, 199 

 output of, 139 

 pause of, 97 

 perfusion of, 1043 



isolated mammalian, 203 

 period of discharge in, 97 



filling of, 97 



rising pressure in, 97 

 refractory period and extra contrac- 

 tion of, 155 

 resuscitation of, 153 

 rhythmicity of, 142 

 sounds of, 88, 205 

 source of energy of contraction of, 



746 



suction action of, 101 

 temperature in, 684 

 tonicity of, 142 

 tracings, 192, 193, 195 



simultaneous, from auricle anc 



ventricle, 193 

 valves of, 86, 202, 204 

 work done by, 138 

 Heat centres, 675 

 coagulation, 792 

 distribution of, 683 

 effect of curara on, 669 

 equivalents of food substances, 660 

 given off in respiration, measure- 

 ment of, 694 

 in body, 659 

 in brain, 664 

 in digestion, 687 

 in fever, 678 

 in glands, 664 

 in heart, 663 

 in muscles, 662 

 in muscular contraction, 736 

 liberated in cleavage of food sub- 

 stances, 659 

 loss, 657 



voluntary regulation of, 667 

 of difference classes, 662 

 production, amount of, 660 



and work, 661 



relation to muscular work, 66 1 

 rigor. See Rigor-heat, 751 



