ON HARNESSING HEREDITY 



that the bees make the colors. The flowers which 

 grow in the blight light need their brilliance to 

 attract the insects; flowers in the shade are more 

 easilj' observed if they are light or white in color; 

 it is all a matter of advertising contrast; and, 

 throughout ages and ages, each particular flower 

 lias been striving to perfect a color contrast scheme 

 of its own. It may be that the combination of sun 

 and soil makes possible brighter colors than the 

 combination of shade and soil; but wind-lo\'ing 

 plants, like corn and trees, which grow in the sun, 

 do not bedeck themselves in colors — only the 

 flowers which find it necessary to attract the 

 insects. 



"In practice, at any rate, the color of a flower 

 is one of the reliable guides in the study of its 

 life-history." 



Taking the orange daisy and its white cousin 

 side bj' side, we see at once a family resem- 

 blance. The leaf formation, the root formation, 

 the arrangement and the number of petals, the 

 arrangement of stamens and pistils, bespeak the 

 fact that here are two plants of a kind; one orange 

 and one white; the white one taller a little, more 

 graceful perhaps, and slightly less hardy; but 

 cousins, beyond doubt, having within them many 

 parallel strains of heredity. 



Let us assume, then, that the orange of the 



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