Prayers to the dead, including ancestors 493 Metamorphoses and transmigration of souls 493 Exhortations to absent warriors 493 Mysterious men and women 493 Gopher lore 496 Causes of boils and sores 496 Results of lying, stealing, etc. 497 Secret societies 497 Fetichism 498 Public or tribal fetiches 498 Private or personal fetiches 498 Ordeals, or modes of swearing 499 Sorcery and jugglery 499 Omens 500 Bodily omens 500 Animal omens 500 Omens from dreams 500 CHAPTER VI.--Cults of the Mandan, Hidatsa, and Sapona 501 Authorities 501 Alleged belief in a Great Spirit 501 The great mystery a modern deity 501 Polytheism 502 Worship 502 Fasting 502 Sacrifice 502 The Okipa 502 The Daḣpike 503 Cult of the Yoni 505 Absaroka fear of a white buffalo cow 505 Mandan cults 506 Mandan divinities 506 Guardian spirits 507 Mandan belief about serpents and giants 507 Thunder lore of the Mandan 508 Astronomical lore 508 Mystery objects and places of the Mandan and Hidatsa 508 The mystery rock 508 Dreams 510 Oracles 510 Fetiches 510 Folklore 511