ON HEREDITY 



Plant potato eyes, and you get potatoes like 

 the parents improving, or retrograding, a little, 

 according to the present environment in which 

 they grow. 



But plant potato seeds, and you tap a mine of 

 heredity, infinite in its uncertainty, but infinite, 

 too, in its possibility. 



That was the boyhood lesson which Luther 

 Burbank learned. 



We shall see, now, how he applied it to other 

 plants how he built on it and expanded it and 

 how it became the basis of more than 100,000 later 

 experiments in plant life. 



Heredity is the sum of 

 all of the environments 

 of a complex ancestry 

 back to the beginning. 



