I'LATE 4 



EXPLANATION OF FIGURES 



14 Cell from the vagus ganglion of a six-year-old hen showing pericellular net- 

 work. X 800. 



15 Cell with initial glomerulus from the Gasserian ganglion of the chick. X 

 800. 



16 Cell with twisted process from the Gasserian ganglion of the chick. X 800. 



17 Vacuolated cell from the Gasserian ganglion of the old hen. X 800. 



18 Multipolar cell with accessory processes and protoplasmic slings, from a 

 sympathetic ganglion of the chick. X 800. 



19 Cell showing accessory processes terminating in end bulbs, from the Gas- 

 serian of a six-vear-old hen. X 800. 



290 



