tfo 



I Day 



20 Days 



13 



366 Days 



Fig. 13 Showing semi-diagrammatically the size and the morphological 

 changes in the ganglion cells in the ganglion spirale of the albino rat at the age of 

 1, 20 and 366 days. All cell figures have been uniformly magnified 1000 diameters. 



