LUTHER BURBANK 



find that for practical purposes it would thus be 

 possible to produce all of the daisies we desired. 

 We might never even care to make use of the seed. 

 But if we did, bj' keeping our new pink daisies 

 together 3fear after year, in eight years, or perhaps 

 ten or fourteen, pink being crossed with pink, and 

 the upset equilibrium restored, we should find that 

 we were getting seeds which came true, or nearly 

 true, to type. 



"You see, we upset heredity to produce varia- 

 tion; then we let it settle down to a balance to 

 perpetuate the particular variation which we have 

 chosen." 



* rt * n * 



The architect can alwaj's build a second struc- 

 ture better than the first, and the plant improver, 

 likewise, finds in each experiment a multitude of 

 new suggestions for the production of still other 

 clianges or improvements. 



In even the handful of daisy variations which 

 can be reproduced here, there are to be seen 

 countless new tendencies, any one of which might 

 lead to the perfection of a wholly different, if not 

 a better flower. 



There are, of course, the variations in size — 

 and those with the long petals show that with 

 encouragement the flower, simply by quantity 

 production and continued selection, might produce 



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