258 Colour and Fattern-Transference in Pheasants 



wattles and on the Swinhoe this division is still wider. The fact 

 that a median "comb" can arise as the result of a cross between two 

 forms in which it is not present is not without interest in connection 

 with the origin of the comb in Gallus. 



The examination showed the wattles of F^ to be a seventh mutation 

 in Series 1 males and that the character was derived from the female 

 parent. 



LiFK History ov Serie.s 1" Fertilk Hybrids. 

 Series l^ 



Silver % "B" X Swinhoe (/ "^1 " 



I 

 " BA " F, i X Swinhoe J' 



I 

 I I I I I 



" BAA '• F,^ c/ d" </ </ 



In Series 1" of the pedigree the mating was reversed. F, " BA " 

 Silver x Swinhoe female was mated with the male i)arent and bred in 

 F.;^ "BAA," a female so closely resembling the female of the male 

 parent species that the phenomenon was described in a short paper and 

 the birds exhibited to the Zoological Society', as being an occurrence 

 both unexpected and not previously recorded. This F^ "BAA " female 

 mated with a Swinhoe male, bred an F-j " BAAA" male not to be 

 distinguished from a pure male Swinhoe. The skins of these birds 

 were presented to the Cambridge Museum of Zoology in 1910, where 

 thoy may be seen. This curious experience of the transmission of 

 the female plumage and dimension of the female of his species by 

 the male parent to his female offspring in Series l"' of the pedigree led 

 to making further trial with the same scheme of mating between two 

 varieties of a different species; a Phasianus formusanus female was 

 crossed with a Phasianus versicolor male (page 248) named Series 2 in 

 the pedigree, with the expectation that the phenomenon would be 

 repeated ; the result verified that expectation, and an account of the 

 experiment, with illustrations, was published by the Zoological Society 

 in 1912- in which it was shown that not only the pattern and the colour 



' Proc. Zoo}. Soc. 1910, "On some Skins nf Hvliritl Pheasants," Rose Haig Thomas. 

 2 Proc. Zool. Soc. 1912, "Experimental Pheasant Breedins," Rose Haig Thomas; 

 Proc. Zool. Soc. 1912, "On Eggs of Pheasants," Rose Haig Thomas. 



