480 



Syncotylous Races. 



whose hereditary value is represented vertically above 

 them. The barbs in the bracket show the parents of the 

 previous generation which had been selected and cor- 

 respond therefore to the totals in the table on page 478. 

 The chief point which this pedigree brings out, is that 

 the selection of the hemi-syncotyls does not modify the 



HEMI-SYNCOTYLOUS RACE. 



PEDIGREE OF THE TOTALS OF HEMI-SYNCOTYLOUS AND SYNCOTYLOUS 



SEEDLINGS. 



10 



95 



7th generation 

 1896 



6th generation 

 1895 



5th generation 

 1894 



4th generation 

 1893 



3d generation 

 1892 



2d generation 

 1891 



1st generation 

 1890 



Syncotylous 

 race, 1889 



race either in one direction or in the other. If we omit 

 the crop of 1890 the several generations fluctuate round 

 a mean value which does not deviate greatly from 55% 

 and thereby agrees sufficiently closely with the average 

 of tricotylous individuals in tricotylous intermediate races. 

 In other words, the selection of hemi-syncotyls gives a 

 syncotylous race of average lvalue', and if we compare 



8 



