Nevertheless we shall find in the North American mythologies much that enters into the composition of the immortal tales of the older religions of the Eastern Hemisphere. All myth, Asiatic, European, or American, springs from similar natural conceptions, and if we discover in American mythology peculiarities which we do not observe in the systems of Greece, Rome, or Egypt, we may be certain that these arise from circumstances of environment and racial habit as modified by climate and kindred conditions alone.