SOCIAL HEREDITY 



179 



ease of perfonnancc, and frequent iierforinance of llie 

 custom increases its permanence and ri.nidity. Just as in 

 the case of the individual habit, with whicli interruption 



From " L'Authrupoli.gic. " 



Figure 03. Deformation of Features by Congo Natives 

 in .submission to approved 8t}ies. 



of its usual course brings feelings of displeasure, so in 

 the case of social usage, deviation from the customary 

 performance of the act sets free emotions of anger or 

 intense displeasure which may cause the punishment or 

 persecution of the innovator. Custom in dress is often 

 quite arl)itrary." To appear on the street in the fashion 



9 See fiiiure 03. 



