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 in disguise. In time the animals are often dropped altogether, though they hold their place with great tenacity in the cosmogonic traditions of the Aryans in India. When we find the Satapatha Brahmana alleging "that all creatures are descended from a tortoise," we seem to be among the rude Indians of the Pacific Coast. But when the tortoise is identified with Aditya, and when Adityas prove to be solar deities, sons of Aditi, and when Aditi is recognised by Mr. Müller as the Dawn, we see that the Aryan mind has not been idle, but has added a good deal to the savage idea of the descent of men and beasts from a tortoise.

Another feature of savage myths of creation we found to be the introduction of a crude theory of evolution. We saw that among the Potoyante tribe of the Digger Indians, and among certain Australian tribes, men and beasts were supposed to have been slowly evolved and improved out of the forms first of reptiles and then of quadrupeds. In the mythologies of the more civilised South American races, the idea of the survival of the fittest was otherwise expressed. The gods made several attempts at creation, and each set of created beings proving in one way or other unsuited to its environment, was permitted to die out or degenerated into apes, and was succeeded by a set better adapted for survival. In much the same