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Rh those I have already considered as characteristic of these islands. When I had discovered the dependence of these features upon the marriage of a man with the wife of his mother's brother, it became evident that not only these, but certain other features of the Pentecost system, were capable of being accounted for by this kind of marriage. The peculiar features of the Pentecost system could be divided into two groups, and all the members of one group could be accounted for by the marriage with the mother's brother's wife. All these features had the character in common that persons of the generation immediately above or below that of the speaker were classed in nomenclature with relatives of the same generation.

The other group consisted of terms in which persons two generations apart were classed with relatives of the same generation. Since the first group of correspondences had been explained by a marriage between persons one generation apart, it should have been obvious that the classing together of persons two generations apart might have been the result of marriage between persons two generations apart. The idea of a society in which marriages between those having the status of grandparents and grandchildren were habitual must have seemed so unlikely that, if it entered my mind at all, it must have been at once dismissed. The clue only came later from a man named John Pantutun, a native of the Banks Islands, who had been a teacher in