783 



rence of a few giant cells in 22^ which are entirely lacking in 22^. 



In fig. 7, tyj3ical for area 22^ we notice two giant cells. Compared 



with fig. 5 — HESCHL-convolntion — tig. 6 as well as fig. 7 J*' 



temporal convolution — show, in agreement with what has been 

 found in European brains, a larger number of pyramidal cells in 

 the 111^' layer. 



Figure 2 shows the left temporal lobe of the Madurese brain B. 



Fig 2. Left temporal lobe. Madurese brain B. 



Here also the HKSCHL-convolution appears to possess a low degree 

 of development. Also microscopical examination revealed a striking 

 agreement as well in the extent as in the cyto-architeetonical 

 characters of the different areas. Area (41 -\- 42) is not frontally 

 restiicted to Heschi.'s convolution, however. In my attempt to define 

 the anterior border of this area I was haiTipered by a badly preserved 

 part of the cortex. For this reason I have been unable to draw this border. 



For the rest figs. 5, 6, and 7 can be applied without alteration 

 to illustrate the cell-lamination of the areas (41 -)- 42), 22" and 22'' 

 in this case. 



The fact that such deviations agree so much in two different 

 individuals of' the same race would render it unjustifiable to ascribe 

 them to pathological causes or to individual variability. 



Also the single case of Vkrgouwen — in all other publications 

 area (41 -|- 42) is described as rich in giant cells — cannot 

 infiuence the results for these two Madurese brains. 



How far we may speak here about racial differences must be settled 

 by examining a larger number of brains. My results with these 

 two specimens certainly justify the expectation that in this direction 

 results may be obtained. 



56* 



