STRUCTURAL ARRANGEMENTS OF CEREBRUM 485 



If sections of the cortex be stained by some method such as 

 Weigert's, which displays medullated nerve fibres, sheaves of radial 



q r 



FIG. 219. Diagrammatic section of cerebral cortex. (From BARKER after 



STARR, STRONG, and LEAMING.) 



I, molecular layer with a, bi-polar cell ; II, layer of small pyramidal cells ; 

 III, layer of large pyramidal cells ; IV, polymorphous layer ; V, white matter. 



fibres may be seen running from the white centre towards the surface 

 and giving ofi a rich meshwork of fibres to the intervening portions of 



