NATURAL SELECTION 125 



favorable environment the result is different from 

 what their development would be in an unfavorable 

 environment (fig. .59) . Here to the right the corn is 

 crowded and in consequence dwarfed, while to the 



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58 



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ii. 



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5'4" ^gj" 6;0.6" 57 ■ 



Fig, 58. — Pedigrees of boys shown in fig. 57. 









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Fig. 59. — Corn raised under diiferent conditions. That to the 

 left is spaced, that to the right is crowded. {After Blakeslee.) 



