138 THE GROWTH OF THE BRAIN. 



and placing the others in regular order below. As a 

 result, the three forms of mental disease in which 

 wasting of the brain takes place (the last three entries 

 in the table) are the ones which stand lowest in the 

 series. The percentage values of the different divisions 

 of the encephalon are given for each form, and that for 

 the cerebrum is found to be less in those diseases in 

 which the encephalic weight is less. When the groups 

 for the females are treated in the same way, the average 

 encephalic weight and the percentage value of the 

 cerebrum are both less in the class of wasting diseases 

 than in the other class, but the encephalic weight does 

 not regularly decrease from the first to last group. 



TABLE 31. SHOWING THE WEIGHT OF THE ENCEPHALON AND 

 ITS SUBDIVISIONS IN VARIOUS GROUPS OF THE INSANE. 

 THE PERCENTAGE VALUES ALONE ARE GIVEN. AGE AND 

 STATURE NEGLECTED. (From Boytfs records.} 



INSANE. 



