436 



EDWIN CARLETON MacDOWELL 



+ 20 



+ 10 



+ 00 

 _00 



_10 



_20 



CORRELATION COEFFICIENTS 



GENERATIONS 16-36 



GROUPED ACCORDING TO TIME OF MATING 

 PARENTS X DAUGHTERS 



I 



CROLTPS 5 



n. 



IT 



5o" 



I 



Figure 3, A 



+.20 



+.I0_ 



+.00 



_.oo 



-.10 



_20 



CORRELATION COEFFICIENTS 



GENERATIONS 16—36 



GROUPED ACCORDING TO TIME OF MATING 

 PARENTS X SONS 



n 



n 



I 



GROUPS 5 



10 



15 



20 



a 





Figure 3, B 



Fig. 3, A and B Correlation coefficients, sons and daughters by parents in 

 the high-selected race alone; families grouped by the time of mating. A, daugh- 

 ter by parents; B, sons by parents. Plotted as in figure L 



