CASTLE. — LAWS OF HEREDITY. 



239 



Diagram showing the Progress of Selection in Cases of Alternative 



Inheritance. 



% 



00 



90 



80 



70 



60 



50 



40 



30 



20 



Gen. 



yl, Kate of Race Improvement by Elimination, Dominance being Alternative. 

 J>, Same, Dominance being Uniform. 



A', Chances in 100 of obtaining a Pure Individual, Dominance being Alternative. 

 D', Same, Dominance being Uniform. 



