GROWTH OF THE INNER EAR OF ALBINO RAT 



161 



therefore, the cells have the characteristics of the mature elements 

 though they stain less deeply than in the adult. At twenty days 

 of age the cell body is enlarged and fully mature. The Nissl 



TABLE 116 



Comparison of the diameters of the cells and their nuclei in the ganglion vestibidare 



according to sex 



bodies are more differentiated and the nucleus is mature, though 

 it shows only a slight increase in size. 



At 367 days the histological structures appear much as at 

 twenty days, but the diameters of both the cell body and the 

 nucleus have very slightly increased. This is in contrast to 

 the change which occurs in the cells of the spiral ganglion. 



