170 THE AMERICAN NATURALIST [Vol. XLV 



have again been calculated, but they hardly emphasize 

 the real segregation as well as do the photographs which 

 were made from representative ears of the different 

 classes found in the actual crop. 



Table IV shows the segregation of weights of seeds in 

 ¥. 2 in this same cross. Fig. 5 shows the average size of 



