64 LUTHER BURBANK 



living matter, so that for each factor that entered 

 into the original structure there are now multi- 

 tudes of factors. 



And in the next generation, when new pairs 

 of elfin architects are making their plans, it will 

 be possible to reassort the materials (in building 

 a large number of new structures that we call 

 offspring of the second generation), making 

 some combinations that will include two smooth- 

 stemmed factors and two white-fruit factors, 

 and thus giving us a certain number of seedlings 

 of this second generation that will have smooth 

 stems and will bear white berries — which chances, 

 perhaps, to be what the crude human experi- 

 menter is seeking. 



The Architects on Strike 



But now let us attend to a case in which a 

 more complex hybridization was made; that, let 

 us say, in which the pollen of an apple was 

 brought to the pistil of a dewberry. 



Now we must call attention to a feature that 

 we have ignored heretofore — the segregation of 

 body plasm and germ plasm at an early stage of 

 the union. 



The coming together of the two germ plasms 

 gives a stimulus to growth. The berry develops, 

 and a drupe is formed that is like a dewberry 



