70 MENDELISM chap. 



Among birds a case of similar nature is that of the Blue 

 Andaslusian fowl. Fanciers have long recognised the 



Sinensis X Stellata 



I 

 Intermediate _F, 



I n — — T 1 



Sinensis Inter. Inter. Stellata Fz 



I , I , . ■ I 

 Sinensis sin. Int. Int. steil. Stellata F3 



Sinensis Stellata- F* 



difficulty of getting this variety to breed true. Of a slaty 

 blue colour itself with darker hackles and with black 

 lacing on the feathers of the breast, it always throws 



Blue X Blue 



. ^^ , 



Black Blue X Blue White 



I 1 ' 1 1 



Black Black Blue Blue White White 



Black X White 



I 

 Blue 

 (all) 



"wasters" of two kinds, viz. blacks, and whites splashed 

 with black. Careful breeding from the blues shows that 

 the three sorts are always produced in the same definite 



