PLATE 3 



EXPLANATION OF FIGURES 



12 A section through the central part of the glossopharyngeal ganglion of the 

 chick, indicating the relations of the elements. 



13 A group of cells from the periphery of the vagus ganglion of the chick, 

 showing typical cells and bundles of non-meduUated fibers. X 1000. 



288 



I 



