212 LUTHER BURBANK 



divergences as these between a son and daughter 

 of the same parents. 



ORIGIN or THE DIVERSIFIED TYPES 



We shall gain a somewhat truer conception of 

 the meaning of our apple catalogue, then, if we 

 think of each listed variety as having the status 

 of an individual rather than that of a race. 



The diversity of individual types becomes ex- 

 plicable if we consider the history of their devel- 

 opment. The apple has been under cultivation 

 for some thousands of years. It has qualities that 

 have made it a favorite with successive genera- 

 tions throughout the entire period. It has been 

 taken everywhere with migrating races of men- 

 it was brought to America, for example until 

 it girdled the globe and found its way almost to 

 the Arctic Circle. 



The different races of apples thus developed 

 have been from time to time intermingled 

 through migrations of the peoples who cultivated 

 the fruit, many of whom, doubtless from the ear- 

 liest period, carried it with them in a dried state 

 on their voyages, and thus perhaps incidentally 

 transported its seeds and carried it into new 

 regions. 



The varieties thus brought together have been 

 cross-pollenized by the bees, and so the tendency 



