54 The Age of Parents 



other animals are somewhat more distant cousins, 

 it' will help some to make a table which will 

 represent, approximately, the length of time 

 elapsing from generation to generation in the 

 male line. 



APPROIXMATE AVERAGE AGE AT REPRODUCTION 



Rabbits 1 year 



Cattle , 4 years 



Horses 10 years 



Apes 16 years 



Digger Indians 21 years 



Eskimos , 23 years 



Polynesians 26 years 



Chinese . 29 years 



Chicago in 1913 . .31 years 



New England in 18th Century 33 years 



Fathers of 571 Eminent Men .. 40 years 



Fathers of 10 Extraordinary Men 58 years 



It will be worth the reader's while to study 

 that table, and to take notice of the fact that it 

 might have been very much extended by includ- 

 ing within it many other tribes and races of 

 men, and many other lower animals, with re- 

 gard to which we have fairly reliable informa- 



