The Variation of Animals and Plants Under Domestication, Volume II (of 2)

by Charles Darwin

effect of segregation on, ii. [86];

preferent pairing of, within the same breed, ii. [103];

fertility of, increased by domestication, ii. [112], [155];

effects of interbreeding and necessity of crossing, ii. [125]-126;

indifference of, to change of climate, ii. [161];

selection of, ii. [195], [199], [204];

among the Romans, ii. [202];

unconscious selection of, ii. [211], [214];

facility of selection of, ii. [234];

white, liable to the attacks of hawks, ii. [230];