374 



Fissura prima 



Lob us ant 

 Velum — 



Nodulus 



Fissura postnodularis 

 Fig. 5. 



Fissura 

 secunda 



Fig. 6. 



Fiss. prima 

 Lob. aut. - 



Fissura secunda 



Nodulus 



Fig. 7. 



Fig. 8. 



Fissura 

 paraflocc. 



Fiss. 

 paraflocc. 



Lobus flocc. 



Lobus 

 medius 



Fissura 

 - paraflocc. 



Lobus 

 V flocc. 



Fig. 9. Fig. 10. Fig. 11. 



Figs. 5 — 11. A series of sagittal sections through the cerebellum of an adult 

 Notoryctes typhlops, stained with lithium-carmine, drawn with the Edingee-Leitz 

 projection apparatus. X ?• 



tapering lateral extremity of the posterior lobe and the ventrolateral 

 part of the posterior surface of the middle lobe are prolonged laterally 

 into direct continuity with the lobus flocculi, which is a small irregular 

 appendage (with only a very shallow furrow indicative of its sub- 

 division into flocculus and paraflocculus) wrapped around the middle 

 peduncle at its entrance into the cerebellum (Fig. 13). 



The exact relationship of the floccular lobes to the rest of the 

 cerebellum can be properly appreciated only by means of the study 

 of a complete series of sagittal sections. I have made such a series 



