INDEX 



131 



Haemoglobin, 6, 28 



aggregation of molecules 

 by inorganic salts, 31 

 behaviour as a weak acid, 



32 

 colorimetric estimation of, 



52 

 combination of carbon 



monoxide with, 45 

 function of, 7 

 percentage, after excessive 

 water drinking, 78 

 at high altitudes, 51, 52, 



56, 57 



effect of increased oxy- 

 gen pressure on, 52 

 Hasselbalch, 36, 49, 51 

 Heart, function of, 72 

 nerve supply, 73 

 regulation of circulation 



rate by, 72, 73 

 regulation of discharge, 74 

 sympathetic control, 73 

 vagus control, 73 

 Hemorrhage, effect of (see 



bleeding) 



Henderson, L. J., 40 

 Henderson, Yandell, 15, 25, 



46, 55, 74 

 Henry, law of, 28 

 Hering, 21, 23 

 Hering-Breuer inhibition and 



alveolar CO2, 25 

 and artificial respiration, 25 

 Himalayas, 58 

 Hook, 6 



Hydrogen ion concentration, 

 36 



and CO2 pressure in blood, 

 37 



effect of diet on, 37 



effect on respiratory cen- 

 ter, 37, 89, 111, 112 



under low atmospheric 



pressure, 51 

 Hyperpnoea, 6 



effect on alveolar CC^, 42 



Immunity to micro-organ- 

 isms, 95 

 to poisons, 95 

 Inspiration, cause of, 22 

 Intestines, formation of am- 

 monia in, 39 



passage of salts into, after 

 excessive water drinking, 

 78, 79 



Kidneys, excretion of water, 



77 



in regulation of blood re- 

 action, 39, 40, 51 

 Kidney secretion, 64, 65 

 effects of drugs on, 65 

 effects of excessive water 



drinking on, 79 

 effects of oxygen want on, 



65 



effects of sweating on, 79 

 regulation of, 89 

 Krogh, 53, 57, 67 



