378 



H. G. MAY. 



in both sexes. The results in the last generation can be ex- 

 plained by the fact that the selections were below the average 



Bal (Ba) 44<J<? 

 3798 



60(J<5 

 7692 



u4fl-3 42<Sd 



3789 



3299 



2722 



<J 



u4f5-l 



2829 



. i A A. 



U4f2-10 203*3 

 1822 



33aa 



U4f4-11 29<<J 

 2499 



1829 



2 



. r ~ 



4122 



u4f2-12 18t!<J 

 i, <^ 3192 



S u4f2-1 27<JcJ 



\-. (ri-i) 3592 



du9 



((J,dlf6-2)l829 



(9,u4f5-H) 



ud) < 



(<J,u4f5-2) 



2529 



(cJ,u4f5-6) 41<J(J 

 (2,dlf6-2) 3522 



(<J.u4f 5 -6) 

 (2,dlf6-2) 6198 



2 



A <: 



/N/ 



< udIO 

 (<J,u4f5-6) 28(3(1 



(a,dif6-2} 2099 



u2 (Ba) 96<)<J 

 11792 



U211-12 33<>(J 

 (u2) 3289 



jO 70 110 150 190 230 270 310 350 390 30 70 110 150 190 230 270 310 350 



FIG. 7. Curves showing the effect of selection in individual lines in Ba, upward 

 selections and crosses. For other information consult the description of Fig. 2. 



in the males and not far above in the females, and the fact that 

 the offspring hatched at a time when all counts were low. This 

 will be explained later. 



