Index 



Voice, Factors in the produc- 

 tion of ...... 



Care of ....... 



Effect of alcohol on . . 

 Effect of tobacco on . . 



284 

 284 



74 



Walking, j umping, and running 

 Waste, how made good by 



food 79, 98 



Waste material, Nature of . 184 



Waste products, Eliminationof 184 



Formation of 184 



Water, as food 82, 88 



Amount of, in various 



tissues 83 



Need of pure 88 



Whispering 283 



Yawning 



174 



