34 HEREDITY AND SOCIAL FITNESS 



Attended college for a time and then taught scliool. Has married 

 IV-85 and lives in a house of his father, whom he helps in addition to 

 working his own small farm. No children. 



IV-86, born 1881. Not very strong physically, but with equable 

 temper and fair intelligence, discussing with interest general questions 

 of the day. Has married IV-87, who is a barber, and belongs to a 

 family of good mentality, and who are well connected. He is jovial, 

 strong, and of good mentality. They have a comfortable home 

 furnished in fair taste and ride in their own automobile. Their daugh- 

 ter and only child (V-169), bom 1905, is a pretty girl, a little nervous, 

 but bright and attractive and being very carefully reared. 



Summary of Line C. 



In surveying Line C, one is struck by the complete absence in later 

 generations of anything that can be denominated social inadequacy. 

 The sole instance of marked mental defect arises in the third generation 

 from the union of the weakest member of the fraternity, irritable and 

 lacking business sense, with a woman having little judgment who 

 later became deranged and who belonged to a strain showing epilepsy. 

 Their imbecile child died young. All of the remaining marriages may 

 be characterized as eugenic, with the possible exception of IV-54 with 

 IV-55. Here a degree of unpracticality on both sides, coupled with a 

 relative lack of perseverance, put the burden of support of their 

 children for a time on others; but all have become self-supporting. 



This line is remarkable, too, for the complete absence of the number 

 and proportion defect characteristic of the mother of its founder. 

 The founder of the line had the sense of number and proportion, with 

 some calculating ability. Marriage with abihty resulted in a slight 

 advance for two of his progeny and considerable advance for the remain- 

 ing three. Marriage of the two inferior ones with ability belonging to 

 able strains has again been followed by advance with reference to 

 these traits, so that in the last two generations all children possess 

 average ability or ability decidedly above the average. In this regard 

 this line may be said to have realized the half-playful suggestion of an 

 eugenicist of a century ago, that with proper selection (selective 

 matings) a defect may be blotted out of a family, just as a careful 

 gardener blots out the blemish from a flower. Aggressiveness was 

 high in only one of the founders of this line. It appeared in moderate 

 degree in at least three of five children, and in high degree in two. 

 Later generations have shown a splitting-up into medium and high 

 aggressiveness, which, with fairly constant occurrence of perseverance 

 and good mentality, has raised all branches of this line to a condition 

 insuring social efficiency somewhat above that of Line B and the 

 better branches of Line A, and in striking contrast to the social inade- 

 quacy of the defective and degenerate Lines D and E. 



