142 HEREDITY. 



man parent a daughter anything like her equal 

 when the father is inferior; on the other hand, 

 great men's sons seldom rise much above the plane 

 of the mother. 



What has just been said of the transmission of 

 normal qualities is equally true of the transmis- 

 HerecSy. s i n f morbid tendencies. Any physical defect 



or abnormality 'is much more apt to pass from 

 father to daughter or mother to son than other- 

 wise. These facts indicate that the creative power 

 of each parent is greatest in the production of the 

 opposite sex. 



