Size and form have also been modified by domestication, the wild canary being not more than in.
The chief or only changes which domestication seems to have induced in its appearance are a tendency to albinism generally shown in the plumage of its lower parts, and frequently, though not always, the conversion of the colour of its legs and 1 Columella (De re rustica, viii.
Agriculture, pottery, weaving, the domestication of animals, the burying of the dead in dolmens, and the rearing of megalithic monuments are the typical developments of man during this stage.
Finally, in this connexion, the first steps in domestication, beginning with the improvement of natural corrals or spawning ground, and hunting with trained dogs and animals.
7 Darwin, Variations of Animals and Plants under Domestication, ii.