542 



MRS. R. HAIG THOMAS ON 



F. 1 2 " Y." 



Parent of 



Eye-skin. ^ 





inter se F. 2. 



Crest. 







Neck. 



^ 





Brenst. 



o 





Flanks. 







Interscapulars, 



CO 





Scapulars. 



~ 





Secondaries. 



^ 





Back. 







Size of egg. 







Lesf Formofian 





o 



Bill. 



, 





Priniai'ies. 



'£ 





Dimension. 







Tail. 



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

 Versicolor male. 



5 F. 2 2 . Crest. 



Neck. 

 Flank. 

 Breast. 

 Legs. 



Bill, size and colour. 

 Interscapular >s . 

 Scapulars. 

 Secondaries. 

 Primaries. 

 Tail. 

 Back. 



Dimension. 

 Habit of moult. 

 Temperament. J 



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 dai-k — colour Versicolor ; 

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

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



