722 



INDEX. 



Voluntary motion, channels for, in the 

 spinal cord, 394. 



Water, in the body, 35. 



proportion of, in the tissues and fluids, 36. 



in the food, 118. 



uses of, 37. 



source of, 36. 



discharge of, 38. 



from the lungs and skin, 38, 245, 266, 272. 



by the kidneys, 38, 325. 

 from the fowl's 



the fowl's egg, in incubation, 643. 

 Weight of organs, in the newly-born in- 

 fant and adult, 705. 

 Wheat, 125. 

 Wheaten bread, 126. 



White commissure, of the spinal cord, 

 374, 383. 



of the brain, 378. 

 White of egg, 80, 127, 588, 617. 

 White globules, of the blood, 21U. 



of the lymph, 309. 

 Winking 1 , movements of, 470. 



reflex action of, 473, 474. 

 Wolffiaii bodies, 684. 



Yeast, action of, in fermentation, 57. 

 Yellow spot, of the retina, 531. 

 Yolk. 587. 



white and yellow, 623. 



Zoiia pellucida. 584. 

 Zone of Ziiin, 523. 



