166 



ANATOMICAL AND PHYSIOLOGICAL STUDIES ON 



ature. Schwalbe ('87) and Alexander ('99) report measurements 

 on these cells in several animals, but for the reasons already 

 given when considering the diameters of the cells in the ganglion 

 spirale, the values obtained by the authors are not repeated here. 



TABLE 121 



Giving the mean, standard deviation and coefficient of variability, with their re- 

 spective probable errors, for the diameters of the cells in the ganglion vestibulare, 

 in radial-vertical section 



On the differences between the growth of the cells in the ganglion 

 spirale and ganglion vestibulare. The foregoing discussion has 

 made plain that the vestibular ganglion cells grow not only in 

 size, but also in histological structure very much before birth, 

 while after birth they grow slowly though continuously. On the 

 other hand, the spiral ganglion cells are relatively immature at 



