GASSERIAN GANGLION: ALBINO RAT 



263 



It follows from this that the gasserian ganglion differs from a 

 spinal ganglion by the fact that the cell bodies composing it 

 have nearly completed their growth at puberty, while in the 

 spinal ganglion growth is much more prolonged. 



If a similar comparison is made to show the growth of the 

 fibers, it seems best to use those appearing in the respective 

 dorsal roots. 



The data for the sensory root of the fifth nerve are based on 

 the average (84 grams) of the two sets of values at 68 and 100 



TABLE 21 



Growth in diameter of cell bodies. This table to be read vertically 



TABLE 22 



On the growth of the nerve fibers and their axes in diameter. This table to be read 



vertically 



grams of body weight as given in table 10, and for the sensory 

 root of the seventh cervical nerve on the values at 81 grams of 

 body weight (table 2, loc. cit.). The relations are shown in 

 table 22. 



Here, as in the case of the cell bodies, the growth of the fibers 

 in the sensory root of the seventh cervical is more marked. 



The foregoing comparison enables us to contrast the growth 

 and size of the two sets of neurons under consideration. More 



