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PLATE V. 



FIGURE 1. 



Type of fibre arrangement in the postcentral area. 



From a transverse section of the ascending parietal or postcentral gyrus, 15 mm. from the 

 margin of the hemisphere. 



Z = zonal layer. S = supraradiary zone. B = position of line of Baillarger. II = radiary zone. 



Compare with 1'late ITI. figure 1. 



A low power drawing gives a disappointing display of the differences in fibre arrangement 

 between this and motor cortex, but the disparity in depth and in general fibre wealth, the latter 

 particularly noticeable in the zonal layer and radiary zone, are points which may be observed. 



The right-hand figures and brackets refer to and show the corresponding position of cell 

 laminae. . *"-. 



FK;UKE 2. 



Type of fibre arrangement in the intermediate postcentral area. : -". 



From a drawing half-way down the postceutral gyrus and towards the parietal side. Z = zonal 

 layer. S = supraradiary layer. B = line of Baillarger. R = radiary zone. The right-hand figures 

 and brackets refer to cell layers. Compare with Figure 1 and note the reduction in fibre wealth. 



