Phratry and tribe 61 Effect of pastoral life upon property and upon the family 61-63 The exogamous clan in ancient America 64 Intimate connection of aboriginal architecture with social life 65 The long houses of the Iroquois 66, 67 Summary divorce 68 Hospitality 68 Structure of the clan 69, 70 Origin and structure of the phratry 70, 71 Structure of the tribe 72 Cross-relationships between clans and tribes; the Iroquois Confederacy 72-74 Structure of the confederacy 75, 76 The "Long House" 76 Symmetrical development of institutions in ancient America 77, 78 Circular houses of the Mandans 79-81 The Indians of the pueblos, in the middle status of barbarism 82, 83 Horticulture with irrigation, and architecture with adobe 83, 84 Possible origin of adobe architecture 84, 85 Mr. Cushing's sojourn at Zuni 86 Typical structure of the pueblo 86-88 Pueblo society 89 Wonderful ancient pueblos in the Chaco valley 90-92 The Moqui pueblos 93 The cliff-dwellings 93 Pueblo of Zuni 93, 94 Pueblo of Tlascala 94-96 The ancient city of Mexico was a great composite pueblo 97 The Spanish discoverers could not be expected to understand the state of society which they found there 97, 98 Contrast between feudalism and gentilism 98 Change from gentile society to political society in Greece and Rome 99, 100 First suspicions as to the erroneousness of the Spanish accounts 101 Detection and explanation of the errors, by Lewis Morgan 102 Adolf Bandelier's researches 103