A REMARKABLE DAISY 317 



by selection so that the factors that remain are 

 those that produce the qualities that we desire 

 to retain. 



Let the seed of each individual plant of these 

 type specimens be sown in a separate plot; and 

 in due course isolate each seedling so that each 

 individual plant is self-fertilized. We shall then 

 find that among the offspring of each plant there 

 is the utmost diversity, but it will appear, in the 

 next generation, that there are some plants 

 that breed true to type and others precisely 

 similar in appearance that produce diversified 

 offspring. 



The suggested manner of selecting by isola- 

 tion of individuals merely enables us to go more 

 directly to the goal. It does not differ in prin- 

 ciple from the ordinary method of selection. But 

 the isolation of each individual, so that its traits 

 may be separately tested, enables us to reach the 

 result in a shorter time. 



So the experimenter who wishes to fix a race 

 of Shasta daisies may with confidence go about 

 the work along precisely the same lines that were 

 used, for example, in the production of the wild 

 Heuchera with crinkled leaves the method, for 

 that matter, through which the races of Shastas 

 were themselves developed after hybridization 

 had supplied the material for selection. 



