GROWTH OF THE INNER EAR OF ALBINO RAT 



109 



This seems to be important and to illustrate the fact that in 

 the papilla spiralis the growth of the elements lying nearer the 

 axis occurs earlier than that of the elements nearer the periphery. 



TABLE 82 Condensed 

 Nucleus-plasma ratios of the inner and outer hair cells M* 



17. Deiters' cells. The Deiters' cells are most delicate ele- 

 ments. In the literature, so far as I know, there are no exact 

 observations touching the growth of these cells in the papilla 

 spiralis, except a few data for their length. They have an 



