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FIG. 270. Cytotectonic type of area striata 

 of calcarine fissure of adult man. (Brod- 

 mann.) Magnified 66 diameters. 



Fio. 271. Giganto-pyramidal cytotectonic type of motor 

 zone of adult man. The two more superficial layers 

 are not reproduced. (Brodmann.) Figs. 270, 271, 

 272 have all the same magnification of 66 diameters, 

 and show the different sizes of the cells and layers in 

 the different regions of the cortex. 



