126 Experimental Zovblogy 
white and blue shanks, crested head, brown egg color, and broodi- 
ness; while leaf comb, single comb, black plumage, buff plum- 
age, normal foot, clear shanks, uncrested head, white egg color, 
and non-broodiness are all recessive to the dominants given 
above. Some oj these recessives may, however, be dominant over 
others. Thus leaf comb and black plumage are dominant over 
single comb and buff plumage that remain recessive. 
OPYRICHT ED BY 
Z°,RELIAGLE 4” 
Fic. 10,C. Silver-spangled Hamburgs. (Reliable Poultry Journal.) 
Hurst points out further that dominance may be complete, when 
it is indistinguishable from pure dominance, or incomplete, 
showing the influence of the recessive character in different de- 
grees. For some characters the dominance is always complete; 
in some it is always incomplete; and in others it is sometimes 
complete, but more often incomplete. The incomplete domi- 
nants appear to be about twice as numerous as the complete. 
In the second generation F, the dominants are again complete 
and incomplete. 
It is to be remembered that all the preceding characters behave 
