1406 



INDEX 



Hearing, end-organ of, 573 



Heart, action of sympathetic nerves on, 



1094 



action of vagus, 1089 

 changes in form, 1017 

 diastolic filling, 1024 

 effect of calcium on, 1080, 1093 



potassium on, 1080, 1093 

 muscarine on, 1069 

 nicotine on, 1062, 1092 

 electrical variations, 259 

 frog's, automatic contraction, 1058 

 human, electrocardiogram of, 1069 

 influence of temperature on rate of, 



1079 



inhibition of, 1090 

 intracoronary pressure, 1085 

 mammalian, ganglion-cells in, 1068 

 mechanism of, 1004-1033 

 nerve fibres in, 1064 

 nutrition of, 1084 

 primitive vertebrate, 1070 

 rate in exercise, 1100 

 reflexes, 1095 

 rhythm, reversal of, 1071 

 sounds, 1020 



graphic record of, 1022 

 systolic output, 1026-1031 

 theories of inhibition of, 1093 

 work of, 1031-1033 

 Heart-beat, causation of, 1057-1086 

 contraction wave, 1066-1068 

 electrometer records of, 1066 

 in mammals, 1068-1073 

 myogenic hypothesis, 1059 

 neurogenic hypothesis, 1058 

 propagation of contraction in, 1062 

 significance of carbon dioxide for, 



1083 



Heart-block, 1072 

 Heart-fibrillation, 1085 

 Heart-lung preparation, Starling's me- 

 thod, 1027, 1028 



Heart-muscle, ' all or none ' pheno- 

 menon, 1074 

 excitation of, 1074 

 influence of tension on, 1077 



of chemical substances on, 



1079 

 physiological properties of, 1074- 



1077 



refractory period of, 1075 

 summation of stimuli in, 1075 

 Heart-musculature, 1005 

 Heat-coagulation, 167 

 Heat-engines, efficiency of, 263 

 Heat-loss, regulation of, 1313 

 production in body, 1310 

 in muscle, 246 

 regulation, nervous mechanism of, 



1316 



in new-born, 1316 

 rigor, 233, 239 



sensations, conduction in cord, 404 

 sexual, in animals, 1371 

 spots, 543 

 values of food-stuffs, 694 



Heats of combusition, 174 

 Heller's test, 106, 1253 

 Helmholtz resonators, 565 



side wire, 211 

 Helweg's bundle, 399 

 Hemiansesthesia, 503 

 Hemianopia, 460, 505 

 Hemiplegia, 503 

 Henle's loop, 1265 

 Hensen's disc, 203 

 Heredity, 1356-1360 



basis of, 21 



Bering's theory of colour-vision, 646 

 Herpes zoster, causation of, 1124 

 Heteroalbumose, 111 

 Heterocyclic amino -acids, 94 

 Heterotype mitosis, 1350 

 Hexachromic vision, 648 

 Hexone bases, 92 

 Hexoses, 67 



classification of, 67 

 derivatives of, 70 

 reactions of, 68 

 Hind-brain, 408, 412^20 

 Hippocampal commissure, 482 

 Hippocampus, 473 

 Hippuric acid, 870, 1250 

 Hirudinised blood, 948, 958 

 His' bundle, 1006, 1072 

 Histidine, 95, 101, 115 



fate of, 873 

 Histological differentiation, 7, 35 



localisation in cortex, 488 

 Histones, 102, 107, 112 

 Hoffmann's test, 94 

 Hopkins' test for lactic acid, 241 



for tryptophane, 104 

 Hopkins -Adamkiewicz reaction-, 104 

 Homogentisic acid, 55, 870, 125(5 

 Homoiothermic animals, 1308 

 Hormones, genital, 1362 

 mammary, 1362 

 nature of, 1319 

 pancreatic, 797 

 Horopter, 656 



Hiifner's method for urea estimation, 1259 

 Human stomac , form and movements, 



783 



Hurthle's manometer, 1010 

 Hyaline corpuscles, 918 

 Hyaloid membrane, 604 

 Hyaloplasm, 19 

 Hydrsemic plethora, 1129 



effect on volume of 



urine, 1275 



Hydrated proteins, 109 

 Hydrazones, 68 

 Hydrocarbons, 49 



unsaturated, 50 

 Hydrocele fluid, 959 

 Hydrochloric acid in gastric juice, 767, 



768 



Hydrogels, 79, 155 

 Hydrogen, 2 



Hydrogen ion concentration, determina- 

 tion of, 1190 

 Hydrolysis, 171 



