542 



MRS. R. HAIG THOMAS ON 



F. 1 $ " Y." 



Parent of 

 inter se F. 2. 



Eye-skin, 



Crest. 



Neck. 



Brea,st. 



Flanks.^ 



In terscapn lars . 



Scapulars. 



Secondaries. 



Back. 



Size of egg. 



^•^ 



Leg' Formosan. 



Bill. 



Primaries. 

 Dimension. 

 Tail. 



bn 



In both F. 1 females the size of egg Avas transmitted by the 

 Versicolor male. 



5 F. 2 2 . Crest. 



Neck. 

 Flank. 

 Breast. 

 Legs. 



Bill, size and colour. 

 Interscapulars. 

 Scapvilars. 

 Secondaries. 

 Primaries. 

 Tail. 

 Back. 



Dimension. 

 Habit of moult. 

 Temperament. 



The fifth female, reserved to breed from, has a pale grey stripe 

 down the back of the shank of one lee:. 



The presence of a mosaic of pale grey and dark grey seen in 

 the legs of F. 1 in this experiment led to the inference that the 

 two parents had severally pale grey legs and dark grey legs, 

 which an immediate examination of the Formosan and Versicolor 

 species confirmed. A curious independent double segregation of 

 allelomorphs was observed in the autumn of 1911 in the crests of 

 the F. 1 males. The centre feathers were dark — colour Versicolor ; 

 fully developed, rapid early moult — habit Formosan : the feathers 

 on the outer edge of the crest were pale — colour Formosan ; 



