154 



Temporal Lobe and Auditory Areas 



[CHAP. 



medium-sized cells is again great, and the individual members are possibly a trifle larger 

 than in other temporal regions. 



I must direct special attention to the condition of the external layer of large pyramidal 

 cells, because it is the appearance presented by them which constitutes the chief distin- 

 guishing feature of this area. Present in great numbers they form a particularly prominent 

 lamina, but among them three types of cells are distinguishable, small, or medium-sized 



Fio. 13. 



Five of the " giant " elements in the layer of large external pyramidal cells of the transverse temporal gyri. From 

 a crush specimen stained with thionin. Zeiss apochromatic oil-immersion lens, 2 mm. Compare the size 

 and structure of these with cells represented in figure 14, prepared in the same way and drawn at a like 

 magnification. 



pyramidal cells, others of such dimensions that the designation large is applicable, and 

 others again which, for differential purposes, may be called giant cells. It is to the last- 

 mentioned cells that most importance is to be attached (text-figure 13); an idea of their 



