HUMAN LIFE 



making to put the same kind and 

 amount of education into all kinds of 

 pupils. 



This fact of the heritability of feeble- 

 mindedness has also an important sig- 

 nificance in connection with a particular 

 social problem, that of juvenile delin- 

 quency, for it has been proved beyond 

 much doubt by the studies of Goddard, 

 Davenport, Kuhlmann, Williams and 

 others that feeble-mindedness and delin- 

 quency are all too often closely linked in 

 terms of cause and effect. Dr. Williams 

 has recently published the detailed re- 

 sults of an exhaustive study made by him 

 of 470 delinquent boys (ages 6 to 22 years) 

 in California. His monograph is the 

 record of an admirable piece of investiga- 

 tion conducted in an unprejudiced and 

 rigorously scientific manner, with care 

 to consider all the details and possible 

 influence of environment as well as of 

 heredity on the subjects of his study. 

 Its results can be expressed in few words, 

 and they are results which are confirmed 

 82 



