1 8 The Thiiid and Fourth Generation 



the influence of changes in racing paraphernalia that 

 have helped to bring about the improvement. What 

 facts seem to show that racing ability is in the blood ? 



2. Is there evidence that ability in other animal 

 activities is similarly heritable ? 



3. Can you discover human pedigrees other than 

 those cited in this chapter that illustrate the matter 

 under discussion ? 



4. What seems to you to be the value of the 

 Wedgewood-Darwin-Galton family tree as showing that 



. ability is transmitted from parent to offspring in human 

 families ? 



5. Will you summarize the data Galton accu- 

 mulated from the study of the families of English 

 judges and state your judgment as to how far the 

 child of able parents is more likely to display ability 

 than the child of average parents ? 



6. What do you think is the meaning of the contrast 

 in the achievements of the descendants of Jonathan 

 Edwards and of Max Jukes ? 



7. What would be your conclusion from the facts 

 given in the chapter ? 



