820 INDEX 



Wallerian degeneration, 575, 586 White fibrous tissue, development of, 

 Water, 104 37 



absorption of, in intestines, 419 



amount excreted, 445, 455, 456 Xanthine, 94 



in expired air, 300 Xantho-proteic reaction, 107 

 of the body, 104. 



as food, 345 Yellow elastic tissue, 35 

 rigor, 526 chemical composition of, 91 



Weights and measures, tables of, 796 development of, 37 



White fibrous tissue, 34 



chemical composition of, 90 Zymogens, 378 



