STRUCTURE OF THE CORTEX CEREBRT. 
G3 
References to Woodcuts in Text. 
Fig. 1. Right hemisphere of Pig. Internal aspect. 
1. Supei’ior arc of the great limbic lobe. 
2. Inferior arc of the great limbic lobe. 
3. Retro-limbic annectant. 
4. Superficial portion of the superior arc (great limbic lobe). 
5. Sub-frontal sulcus. 
6. Sub-parietal sulcus. 
7. Commencement of crucial sulcus. 
8. Inferior portion of the great limbic fissure. 
10. Inner aspect of the frontal lobe. 
Fig. 2. Left hemisphere of Pig. External aspect. 
9. Fissure of Rolando. 
10. Frontal lobe : portion corresponding to ascending frontal convolution. 
11. Anterior part of parietal lobe, corresponding to ascending parietal con¬ 
volution. The tiers of parietal gyri terminate here (gyrus post- 
Rolandique). 
12. Inter-parietal sulcus. 
13. Sylvian fissure. 
14. Temporal lobule of the parietal lobe. 
15. First parietal or Sylvian convolution. 
15a. Anterior limb of first and second parietal convolutions united. 
1G. Posterior limb of second parietal gyrus. 
17. Third parietal convolution. 
18. Fourth parietal or sagittal convolution. 
19. Olfactory lobe. 
Fig. 3. Brain of Pig. Illustrative of the distribution of the five-laminated cortex over 
the limbic, frontal, and parietal lobes. 
Fig. 4. Brain of Sheep (internal aspect of right hemisphere). Illustrative of the dis¬ 
tribution of the five-laminated cortex over the frontal and great limbic lobes. 
Fig. 5. Brain of Cat (inner aspect of left hemisphere). Illustrative of the distribution 
of the five-laminated cortex over the frontal and great limbic lobes. 
Fig. G. Brain of Cat (outer aspect of left hemisphere). Illustrative of the distribution 
of the five-laminated cortex over the frontal, limbic, and parietal lobes. 
Fig. 7. Brain of Cat (frontal aspect). Illustrative of the distribution of the five- 
la,minated cortex over the frontal, limbic, and parietal lobes. 
Fig. 8. Brain of Barbary Ape. Illustrative of the distribution of the five-laminated 
cortex over the upper surface of the hemisphere. 
Fig. 9. Brain of Ocelot (Felis pardcilis ). Illustrative of the distribution of the five- 
laminated cortex, as seen from the vertex. 
