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RENJI NITTONO 



the entire fibers taken from the larger annnals are larger than 

 those taken from the smaller animals. More precisely, we find 

 three instances in which the values were equal, and out of the 

 remaining seventy-three pairs, forty-eight, or 66 per cent, in 



TABLE 11 

 Data on the diameter of the entire nerve fibers in n in larger and smaller rats of the 



same age — on body weight 



which the larger diameter of the fibers appeared in the larger 

 animal. 



The average values given at the bottom of each column show 

 that in the three branches and in the fifth nerve root the average 

 value of the diameter of the fiber in the larger animals is greater 

 than in the smaller. The smaller animals in these cases have 



