THEORY OF EVOLUTION 



175 



25. Here one of the grand-parental types 

 reappears in large numbers, while the extreme 

 of the other grand-parental type did not re- 

 appear (in the counts obtained), although the 

 F2 number would probably overlap the lower 



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Fig. 87. Cross of normal and fantail pigeons. (See Fig. 

 86.) The F, range is wider than that of F^. The normal grand- 

 parental type of 13 feathers was recovered in F, but the higher 

 numbers characteristic of fantails were not recovered. 



