LIST OF ILLUSTRATIONS. XXT 



8. — Caudal Aspect of the Mesencephalon, with parts of the adjoining regions. 



9. — Sinistral Aspect of the Mesencephalon and Diencephalon. 

 10. — Dorsal Aspect of the Diencephalon, including the Diatela. 

 11. — Area Cruralis, with part of the Pons and of the Area Praechiasmatica. 

 12. — Dorsal Aspect of the Metencephalon. 



13. — Part of an Oblique Transection of the Prosencephalon and Diencephalon to show 

 the Form and Position of the Crista Fornicis. 



PLATE IV. 



14. — Ventro-caudal View of the Fornix, with the adjacent parts. 



15. — Dorsal Aspect of the Procoelia. 



16. — Rhinocoelia and Procoelia. 



17.— Mesal Aspect of the Right Hemisphere, with the Lobus Olfactorina 



18. — Eight Procoelia seen from the Right or Ectal Side. 



19. — Left Praecornu and Porta exposed from the Left or Ectal Side. 



20. — Transection of the Fornix with the Crista. 



