ARCHITECTURE AT MATURITY. 



181 



TABLE 41. GIVING THE BRAIN-WEIGHT IN THE CASE OF 

 FEMALES AFFECTED BY THE DEFORMATION OF THE SKULL 

 PRACTISED ABOUT TOULOUSE. THE CEREBELLUM AND 

 THE STEM HAVE BEEN WEIGHED TOGETHER. (Compiled 

 from Ambialet.} 



The average weight of the normal encephalon (French females 

 between 65-85 years Broca) is given below for comparison. 



FEMALES. 



Normal females, 65-85 years (Broca), average weight, 1 1 10 



The average weight of the encephalon is given in each 

 table, and for comparison also the normal weights in 

 both sexes between sixty-five and eighty-five years of 

 age. These later observations were made by Broca on 

 normal French subjects, and hence are the most directly 

 comparable with the figures of Ambialet. It is seen 

 that the " moderately " deformed male brains (average 

 weight 1,255 grms.) are slightly below Broca's figure ; 

 whereas the corresponding brains among the females 

 (average weight 1,133 g rms O are slightly above. It is 

 therefore to be concluded that this deformity when 

 moderate is associated with compensatory growth, but 

 when the deformity becomes excessive this compensa- 

 tion is usually incomplete. 



It is very interesting to find, however, that if the 

 hemispheres (mantle plus the basal ganglia) are divided 



