But there are other secondary features of what can only be classed as social organization, which have nothing to do with kinship.

Sex, for instance, has a direct bearing on social status.

The men and the women often form markedly distinct groups; so that we are almost reminded of the way in which the male and the female linnets go about in separate flocks as soon as the pairing season is over.

Of course, disparity of occupation has something to do with it.

But, for the native mind, the difference evidently goes far deeper than that.