THE NERVOUS SYSTEM 253 
Tel med) 
Fig. 151. — Six transverse sections through 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. at. V-; 
Lateral ventricle. Other abbreviations as before (Fig. 147). 
