Page:Darwinism by Alfred Wallace 1889.djvu/253

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VIII
ORIGIN AND USES OF COLOUR IN ANIMALS
231

be required by the subject of sexual differentiation of colour and ornament, as to the origin and meaning of which I have arrived at different conclusions from Mr. Darwin. These various forms of coloration having been discussed and illustrated, we shall be in a position to attempt a brief sketch of the fundamental laws which have determined the general coloration of the animal world.