572 



Vitellin, 23 

 Volume, heart, 215 

 Voluntary apnoea, 480 

 Vortices, arterial, 189 



Water, life, 66 

 Wave, pulse, 240 



dicrotic, 269 



velocity, 273 

 Work, heart, 230 



PHYSIOLOGY 



Xanthine, 24, 130, 298, 552 

 Xanthoproteic test, 22 



Yawning, 438 



Zea mais, 59 

 Zoospores, 16 

 Zymase, 30 



blood, 127 

 Zymogens, 30 





