Leach is adamant on this point: Pul Eliyan kinship is cognatic rather than unilineal, a major point of difference from a system of hereditary...

Leach is adamant on this point: Pul Eliyan kinship is cognatic rather than unilineal, a major point of difference from a system of hereditary moieties. In Pul Eliya, sidedness was a statistical tendency, not determined by a rule of descent. But Leach himself never perceived the network sidedness that were implicit in his published genealogical data. White and Houseman, SIDEDNESS: 60 Million Strong?