natural selection in the game cock, ii. [225];
pugnacity of game hens, i. 256;
length of the middle toe in Cochin fowls, i. 259;
origin of the Sebright bantam, ii. [54];
differences in the size of fowls, i. 257;
effect of crossing in fowls, i. 258, ii. [96];
effects of interbreeding in fowls, ii. [124]-[125];
incubation by mongrels of non-sitting races of fowls, ii. [44];
inverse correlation of crest and comb in fowls, i. 274;
occurrence of pencilled feathers in fowls, ii. [40];