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PLATE XII. 



FIGURE 1. 



Type of fibre arrangement in the A udito-sensory area. From a section of the anterior trans- 

 verse temporal gyrus of Heschl. "," . 



Compare with figure 2 and note that the fibre wealth is very much greater and especially 

 that long stout fibres in the radiary zone are much more numerous. Z = zonal layer. S = supra- 

 radiarv layer. B = line of Baillarger. R = radiary zone. The figures and brackets to the right 

 refer to cell layers. 



FIGURE ~2. 



Type of fibre arrangement in Temporal Area No. 2 (audito-psychic). 



From the free surface of a transverse section through the middle of the first temporal gyrus. 

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



The drawing illustrates the pronounced superiority in fibre wealth of this area in comparison 

 with the general temporal region (Plate XIV. figure 1). The line of Baillarger does not stand 

 out plainly owing to the rich fibre supply of surrounding parts. 



The numbers and right-hand brackets refer to cell laminae. ",". 



