LUTHER BURBANK 



We shall have occasion to examine further 

 evidence of the truth of this proposition, drawn 

 from a quite different field, in a later chapter. 

 Here, for the moment, we may be contented 

 merely to place our colossal walnuts in evidence. 



Towering above their dwarf blood-sisters, they 

 present a vivid object lesson in heredity that 

 appeals directly to the senses and strangely stim- 

 ulates the imagination. 





Nature sets no limit on 

 the length of time through- 

 out which a submerged char- 

 acter may be transmitted. 



