232 



Isabel McCracken 



gories for a continuation of the study of the hereditary behavior 

 of the AB character. 



Category a AB (male or female) of AB parents xS of S parents. 

 /; AB of AB parents xAB of AB parents. 

 c AB of AB parents xB (collected '06). 

 d B of B xAB parents xB of AB xAB parents (hybrid 



B X extracted B). 

 e B of B xAB parents xB of B xAB parents (hybrid 



Bxhybrid B). 

 / S of SxAB parents xS of S xAB parents (hybrid 



S xhybrid S). 

 g B of ABxABxB collected '06 (extracted Bxpure 



B (pure with ref. to AB). 

 h B of B xAB xB collected '06 (hybrid B xpure B). 

 / AB ('06 sport) xAB ('06 sport). 



The following pedigree-diagrams are given for categories d, e^ 

 f, g, and h, in order to show more graphically the character of 

 the lineage. 



DIAGRAM YU— Category d 



First Matings 



First Generation 



Second Generation 



S X S B X B 



AB (sport) AB (sport) 

 I I 



I 



AB, B and I (mixed) 



Third Generation AB and B (12:1) 



1^ 



Fourth Generation AB (all) 



Fifth Generation 



AB (all) 



B (pure) 



J 



"I 



ABandB(3:l) B (all) 



I I 



I I 



BandAB B (all) 



( 14; 1) 9 broods 1 brood 



