Description of the different forms of the Australian family organization; Methods of obtaining wives - Kurnai, Gourditch-mara, Youin, Bangerang, Wotjobaluk, Parkengee, Euahlayi, Wiradjuri, Dieri, Arunta, Warramunga, Binbinga, Anula, Mara, Tjinjilli, Gnanji, Kuinmurbura, Wakelbura [and other places throughout Australia]; Husband and wife relationships - diversity of previous statements and contradictions; Sexual aspects of marriage, punishment for infidelity, discussion on the pirrauru relationship of the Dieri, jealousy; Review of statements made on local groups, property rights, camp arrangements, relationship of the family unit to the tribal and territorial organization; Kinship, conception beliefs, collective ideas which define parental kinship; Examples of kinship ideas suggested by folklore (Central and north Central Aust.); Parental control and childhood, infanticide, life of initiates; Economic life, sexual division of labour, sociological features; Brings together and discusses statements by other authors on foregoing subjects.