HEREDITY 



INTRODUCTION 



GENETICS, A NEW SCIENCE 



THE theory of organic evolution has prob- 

 ably influenced more fields of human 

 activity and influenced them more pro- 

 foundly than has any other philosophic deduc- 

 tion of ancient or modern times. By this theory 

 philosophy, religion, and science have been rev- 

 olutionized, while in the practical arts of educa- 

 tion and agriculture, twin foundation stones of 

 the state, man has been forced to adopt new 

 methods of procedure or to justify the old ones 

 in the light of a new principle. 



The evolutionary idea has forced man to con- 

 sider the probable future of his own race on 

 earth and to take measures to control that fu- 

 ture, a matter he had previously left largely to 

 fate. With a realization of the fact that or- 



