NERVOUS SYSTEM 



103 



as well as a decrease in the total ar^as in the oldest group- 

 table 64. 



TABLE 64 



Giving for Albinos of d'^fferenl ages the numbers of myelinated fibers in the ventral 

 root of the second cervical nerve and the areas of the fibers. Dunn {'12) 



132 days 

 Two females 

 Two males. . 



640 days 

 Three males. 



164.26 

 267.00 



NUMBER 

 FIBERS 



334.47 



368 

 366 



542 



565 



653 

 613 



560 

 668 



683 

 625 



518 

 609 



776 

 617 



864 



AVERAGE .4.REA 

 TEN LARGEST 

 FIBERS IN m' 



17.2 

 22.3 



38.5 

 32.9 



78.2 

 80.6 



115.4 

 116.9 



136.0 

 141.0 



168.8 

 201.3 



261.0 

 216.8 



170.7 



AVERAGE AREA 

 OF AXES IN H'^ 



10.6 

 13.9 



18.1 

 15.2 



31.2 

 31.7 



49.6 

 52.8 



59.3 

 63.2 



75.9 



98.2 



133.4 

 107.1 



r8.2 



PERCENTAGE 

 OF .UCIS 



61.6 



62.3 



47.0 

 46.2 



40.0 

 39.3 



43.0 

 45.1 



43.6 



44.8 



44.9 



48.7 



51.3 

 49.4 



45.8 



The number of myelinated fibers in the peroneal nerve of 

 the normal Albino is given from Greenman's observations ('17) 

 in table 65. 



