3 

 C 



O 



o 



(1> 



c 

 E 



0) 



a 





DO 



3 



c 

 o 



0) 



c 



Modification of Germinal Constitution of Organisms 

 Modal class of parent generations 



163 



., iO 



S, E 



•I - 



U 





lusiuBiai/^i 



lUSI 



uiqiv 



suoi;eiJBA 84i jo uoipajiQ 



