THE NERVOUS SYSTEM 



253 



FIG. 151. Six transverse sections (hrough the brain of an 8-day chick in 

 the planes represented in Fig. 147. 



Cbl., Cerebellum. F. M., Foramen of Monro. Gn. V., Ganglion of the 

 trigeminus. Isth., Isthmus. It. d., Diverticulum of the iter. lat. V., 

 Lateral ventricle. Other abbreviations as before (Fig. 147). 



