sociology. I have so far left on one side the subjects which have been the main ground of controversy ever since the time of Morgan. You will have gathered that I regard it as a grave misfortune for the science of sociology that the topics of promiscuity and group-marriage should have been thrust by Morgan into the prominent place which they have ever since occupied in the theoretical study of relationship. Even now I should have liked to leave them on one side on the ground that the evidence is as yet insufficient to make them profitable subjects for such exact inquiry as I believe to be the proper business of sociology. Their very prominence, however, makes it impossible to leave them wholly unconsidered, but I propose to deal with them very briefly.
I begin with the question whether the classificatory system of relationship provides us with any evidence that mankind once possessed a form of social organisation, or rather such an absence of social organisation, as would accompany a condition of general promiscuity in which, if one can speak of marriage at all, marriage was practised between all and any members of the community, including brothers and sisters. I can deal with this subject very briefly because I hope to have succeeded elsewhere in knocking away the support on which the whole of Morgan's own construction rested.
Morgan deduced his stage of promiscuity from the Hawaiian system, which he supposed to be the most primitive form of classificatory nomenclature.
