Fig. 17.—Begonia Leaf.
Footnotes
[1] Wallace, Tropical Nature, p. 206.
[2] Op. cit., p. 206.
[3] Evolution, Old and New, p. 346.
[4] On a New Method of Expressing the Law of Specific Change. By A. Tylor.
[5] Animals and Plants under Domestication, vol. ii., p. 350.
[6] Animals and Plants under Domestication, vol. ii., p. 370.