expressed by the term wakanda. While the beliefs of many of the Siouan tribes are lost through the extinction of the tribesmen or transformed through acculturation, it is fortunate that a large body of information concerning the myths and ceremonials of several prairie tribes has been collected. The records of Carver, Lewis and Clark, Say, Catlin, and Prince Maximilian are of great value when interpreted in the light of modern knowledge. More recent researches by Miss Fletcher(49) and by Dorsey(50) are of especial value, not only as direct sources of information but as a means of interpreting the earlier writings. From these records it appears that, in so far as they grasped the theistic concept, the Siouan Indians were polytheists; that their mysteries or deities varied in rank and power; that some were good but more were bad, while others combined bad and good attributes; that they assumed various forms, actual and imaginary; and that their dispositions and motives resembled those found among mankind. The organization of the vague Siouan thearchy appears to have varied from group to group. Among all of the tribes whose beliefs are known, the sun was an important wakanda, perhaps the leading one potentially, though usually of less immediate consideration than certain others, such as thunder, lightning, and the cedar tree; among the Osage the sun was invoked as "grandfather," and among various tribes there were sun ceremonials, some of which are still maintained; among the Omaha and Ponka, according to Miss Fletcher, the mythic thunder-bird plays a prominent, perhaps dominant rôle, and the cedar tree or pole is deified as its tangible representative. The moon was wakanda among the Osage and the stars among the Omaha and Ponka, yet they seem to have occupied subordinate positions; the winds and the four quarters were apparently given higher rank; and, in individual cases, the mythic water-monsters or earth-deities seem to have occupied leading positions. On the whole, it may be safe to consider the sun as the Siouan arch-mystery, with the mythic thunder-bird or family of thunder-birds as a sort of mediate link between the mysteries and men, possessing less power but displaying more activity in human affairs than the remoter wakanda of the heavens. Under these controlling wakandas, other members of the series were vaguely and variably arranged. Somewhere in the lower ranks, sacred animals—especially sports, such as the white buffalo cow—were placed, and still lower came totems and shamans, which, according to Dorsey, were reverenced rather than worshiped. It is noteworthy that this thearchic arrangement corresponded in many respects with the hierarchic social organization of the stock.