The neglect of maternal and paternal kinship respectively in these two cases is obvious. They are recognised physically. But they are not used as part of the fabric of social institutions. Physical motherhood or fatherhood is nothing to these people, and one must learn to understand that there is wide difference between the mere physical fact of having a mother and father, and the political fact of using this kinship for social organisation. Savages who have not learnt the political significance have but the scantiest appreciation of the physical fact. The Australians, for instance, have no term to express the relationship between mother and child. This is because the physical fact is of no significance, and not as Mr. Thomas thinks because of the meagreness of the language.[325] Our field anthropologists do not quite understand the savage in this respect. It is of no use preparing a genealogical tree on the basis of civilised knowledge of genealogy if such a document is beyond the ken of the people to whom it relates. The information for it may be correctly collected, but if the whole structure is not within the compass of savage thought it is a misleading anthropological document. It is of no use translating a native term as "father," if father did not mean to the savage what it means to us. It might mean something so very different. With us, fatherhood connotes a definite individual with all sorts of social, economical, and political associations, but what does it mean to the savage? It may mean physical fatherhood and nothing more, and physical fatherhood may be a fact of the veriest insignificance. It may mean social fatherhood, where all men of a certain status are fathers to all children of the complementary status, and social fatherhood thus becomes much more than we can understand by the term father.