LONGEVITY IS HEREDITARY 41 



horses, just as some human families, carry 

 their potency and vigor to greater ages 

 than others. It is a hereditary trait. Fer- 

 dinand de Lesseps, as a man, is an example, 

 and "Charles Derby," in horses, is an- 

 other. 



The betterment of the race will come 

 through a few families, and, of those fam- 

 ilies, not all will contribute an equal share 

 to human improvement. 



STERILITY. 

 "We all know that the instant a hen is 

 hatched, the number of possible eggs she 

 can produce is known and limited. It is 

 the same with every human female, — and, 

 as the greatest glory of womanhood is 

 motherhood, it should be the duty and the 

 . pleasure of every woman to practice 

 self-denial ; to train herself and mate her- 

 self so that her offspring will be the best ; 

 and then to raise her children so that they 

 may be an honor and glory to their name 

 and a credit to the state. In some coun- 

 tries, chiefly polygamous, the offspring 

 used to take the name of the mother until 



