106 HALF BREEDS. [CHAP. VII. 



that age, unless there be an admixture of white blood, it becomes 

 in most instances extremely difficult to carry them forward. 

 That the half breeds should be intermediate between the two 

 parent stocks, and that the colored race should therefore gain in 

 mental capacity in proportion as it approximates in physical 

 organization to the whites, seems natural ; and yet it is a won 

 derful fact, psychologically considered, that we should be able to 

 trace the phenomena of hybridity even into the world of intellect 

 and reason. 



