VII ] 



Linibic Lol><> and Olfactori/ Area 



177 



The lint- of Baillargcr is a l>n>a<l one, but it does not contain airy fibres of large calibre; 

 the elements present have an irregular course and do not tend to run so parallel to the 

 surface as one would expect. 



FIG. l(i. Drawings to explain some anatomical points in the hippocauipal area alluded to in the text. 

 They show the inner and cut surfaces of a hemisphere from which everything above the level of the temporal 

 lobe and cuneus has been removed. 1. Gyrus semilunaris. 2. Gyrus eircumarabiens. 3. Uncus. 4. Wall of 

 fissura hippocampi (subiculum). 5. Corpus callosum. 6. Fornix. 7. Dentate gyrua at bottom of fissura hippo- 

 campi. 8. Ventricle. 9. Cut white matter. 10. Cut cortex. 11 and 12. Gyri of Heschl (transverse temporal). 

 13. Upper concealed surface of temporal lobe. 14. Groove representing the fissura rhinica. 15. In centre of lobus 

 pyriformis. Co. collateral, Co. calcariue, and P.O. parieto-occipital fissure. 



The projection fibres of Meynert are not arranged in such composite bundles as in other 

 parts, and many individual stragglers are to be seen. In form the constituent fibres are 

 cylindrical and free from varicosities, and in point of size they do not approach those which 

 we have already seen in the motor and visual cortex ; and again I would state that these 



C. 23 



