8o6 



INDEX 



Heart, automaticity of, theories of, 200 

 -block, 202 

 capacity of, 1 70 

 chambers of, 168 

 character of contraction, 195, 199 

 compensatory pause, 200 

 conducting bundle, 203 

 coronary circulation of, 215 

 cycle of, 179, 193 

 depressor nerve of, 248 

 development of, 171 

 endocardiac pressure, 187 

 excised, experiments on, 263, 264 

 force of action, 195 

 frequency of action, 179, 217 

 ganglia of, 201 

 impulse of, 185 



influence of accelerator nerve on, 

 210, 615 



of coronary circulation on, 215 



of drugs on, 217 



of inhibitory nerves on, 210, 614 



of mechanical tension on, 216 



of nervous system on, 210, 266 



of nutrient fluids on, 263 



of sympathetic system on, 210 



of temperature on, 216 



of vagus on, 210 

 inhibitory nerve of, 210, 614 

 irritability of, 199 

 isolated, 200, 263, 264 

 metabolism of, 204 

 muscle, 62 



properties of, 195 

 production of heat by, 503 

 relation of rhythm to nutrition, 204 

 rhythmic contraction of, 196, 204 

 size of, 170 

 sounds of, 183 



causes of, 184 

 structure of, 171 

 tonicity of, 198 

 valves of, 172 



action of, 181 

 volume of, 264 

 weight of, 1 70 

 work, per diem, 479 

 Heat, animal, 501 



dissipation of, 503 



from lungs, 506 



from skin, 504 

 influence of extreme, 505 



Heat, of nervous system on production 

 of, 57 



produced in muscular contraction , 501 



-producing organs, 503 



production of body-, 503, 506 



regulation of body-, 503 

 centers for, 507 



-rigor, 513, 526 



variations in, 506, 507 

 in loss of, 503 

 in production of, 506 



Heidenhain's experiments on urine secre- 

 tion, 436 

 Height weight chart, 479 



formula for area, 479 

 Heller's ring test, 108 

 Hemacytometer, 159 

 Hematin, 146 

 Hematoblasts, 128 

 Hematoidin, 146 

 Hematoporphyrin, 146 

 Hemianopsia, 646 

 Hemin, 146 

 Hemiopia, 646 

 Hemochromogen, 145 

 Hemoglobin, 87, 95, 139, 160, 307 



action on gases, 142 



combining power with oxygen, 305, 

 306 



crystals, 140, 16.4 

 preparation of, 105 



derivatives of, 145, 164 



estimation of, 142, 160 



reduced, 142 

 Hemoglobinometer, 142, 160 



Dare's, 144 



FleischPs, 142 



Talquist's, 144 

 Hemolysis, 149 

 Henle's membrane, 174 



loop, 423 



Hepatolytic sera, 150 

 Heredity, 784 

 Hind-brain, 605 

 Hippuric acid, 433 



formation of, 433-463 

 His, bundle of, 202 

 Histidine, 82 

 Histones, 87, 91 

 Hopkins-Cole reaction, 107 

 Hormones, 483 



gastric, 366, 36; 



