166 



Bulletin No. 155.— 1913. 



Table 2. — Showing the results in Fi of the second series of White Leghorn X 

 Black Hamburg matings (Series of 1911). 



*These birds are also listed in the white column since their plumage was mainly white (see text). 



From Table 2 it appears that of 61 Fi birds, all were white; but 

 that 9 possessed one or more barred feathers. Of these 9, 6 were 

 99, 2 were cf d^, and the sex of the other was not ascertained. In 

 this series there was about the same proportion of birds flecked with 

 black and these were evenly distributed between the sexes. 



Case la. — [White Leghorn cf X Black Hamburg 9 ] cf X [White 

 Leghorn 6^ X Black Hamburg 9 ] 9 . Nature of mating: CCBbffli 

 X CCBbFfli. (For discussion, see p. 192). 



Of the cross-bred fowls raised in 1910, d^ 2IIM2 and six 99 were 

 bred together in 1911. 



The cockerel was hatched as a pure white bird without trace 

 of black down-feathering. Among the coverts of each wing 

 was a single feather showing a bufT-yellow bar; among the 

 saddle feathers were a few showing some buff. 



Among the 99, 201 G was a nearly pure white bird but 

 showed a few splashes of black in wing coverts and saddle 

 feathers; 201 L was hatched with a large patch of black down 



