NERVOUS SYSTEM 



137 



Hatai concludes that the nitrogenous organic extractives 

 are intimately related to the active cell substance and that the 

 protein fraction of the brain is well saturated with metabohc 

 products. 



TABLE 92 

 Showing the total nitrogen as well as non-protein nitrogen in several organs of the 



adult albino rat 



5 10 15 20 24 



Chart 16 Showing the differences in the amount of non-protein nitrogen in 

 the brain of test rats from that found in the controls. 



For comparison, the total nitrogen and non-protein nitrogen 

 in several organs are given in table 92. 



The amount of non-protein nitrogen in the brain at intervals 

 during twenty-four hours after feeding, has been determined by 

 Komine ('19). Albinos of both sexes and more than 100 days old 

 were used — table 93 and chart 16. 



