86 LUTHER BURBANK 



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 throughout which 

 a submerged character may be 

 transmitted. 



