CHAPTER IV 



SELECTIVE BREEDING 



In stressing the idea that many of out best 

 endowments are conferred by social inheritance, 

 we must remember that these advantages cannot 

 come to their best fruition unless based on a 

 good organic inheritance. The eugenist tells 

 us that the principal method by which racial im- 

 provement can take place consists in letting 

 good stock reproduce and poor stock remain 

 sterile. This means that every possible 

 measure should be taken to increase the fertility 

 of the best types. Superior racial stocks must 

 always be encouraged. 



A recent article by Major Leonard Darwin,^ 

 after discussing the danger from propagation 

 of inferior stocks, contains the following state- 

 ments, — *' Turning to the other side of the 



1 International Journal of Public Health, Vol. II, No. 6, 



1021. 



35 



