XII. All the children of my collateral brothers and sisters are, without distinction, my sons and daughters.
Reasons, as in I, III, IV, VI.
XIII. All the children of the latter are my grandchildren.
Reasons, as in II.
XIV. All the brothers and sisters of my grandfather and grandmother, on the father’s side and on the mother’s side, are my grandfathers and grandmothers.
Reason: They are the fathers and mothers of my father and mother.
Every relationship recognized under the system is thus explained from the nature of the consanguine family, founded upon the intermarriage of brothers and sisters, own and collateral, in a group. Relationships on the father’s side are followed as near as the parentage of children could be known, probable fathers being treated as actual fathers. Relationships on the mother’s side are determined by the principle of affinity, step-children being regarded as actual children.
Turning next to the marriage relationships, confirmatory results are obtained, as the following table will show:
| Tongan. | Hawaiian. | ||||||||
| My | Brother’s Wife, | Male | speaking. | Unoho, | My | Wife. | Waheena, | My | Wife. |
| ” | Wife’s Sister, | ” | ” | Unoho, | ” | ” | Waheena, | ” | Wife. |
| ” | Husband’s Brother, | Female | ” | Unoho, | ” | Husband. | Kane, | ” | Husband. |
| ” | Father’s Brother’s Son’s Wife | Male | ” | Unoho, | ” | Wife. | Waheena, | ” | Wife. |
| ” | Mother’s Sister’s Son’s Wife | ” | ” | Unoho, | ” | ” | Waheena, | ” | ” |
| ” | Father’s Brother’s Daughter’s Husb. | Female | ” | Unoho, | ” | Husband. | Kaikoeka, | ” | Bro.-in-law. |
| ” | Mother’s Sister’s Daughter’s Husb. | ” | ” | Unoho, | ” | ” | Kaikoeka, | ” | ” |