Part III these several forms of the family will be treated specially.

But as they will be frequently mentioned in the next ensuing Part, they should at least be defined in advance for the information of the reader. They are the following:

I. _The Consanguine Family._

It was founded upon the intermarriage of brothers and sisters in a group. Evidence still remains in the oldest of existing systems of Consanguinity, the Malayan, tending to show that this, the first form of the family, was anciently as universal as this system of consanguinity which it created.

II. _The Punaluan Family._

Its name is derived from the Hawaiian relationship of _Punalua_. It was founded upon the intermarriage of several brothers to each other’s wives in a group; and of several sisters to each other’s husbands in a group. But the term brother, as here used, included the first, second, third, and even more remote male cousins, all of whom were considered brothers to each other, as we consider own brothers; and the term sister included the first, second, third, and even more remote female cousins, all of whom were sisters to each other, the same as own sisters. This form of the family supervened upon the consanguine. It created the Turanian and Ganowánian systems of consanguinity. Both this and the previous form belong to the period of savagery.

III. _The Syndyasmian Family._

The term is from συνδυάζω, to pair, συνδυασμός, a joining two together. It was founded upon the pairing of a male with a female under the form of marriage, but without an exclusive cohabitation. It was the germ of the Monogamian Family. Divorce or separation was at the option of both husband and wife. This form of the family failed to create a system of consanguinity.

IV. _The Patriarchal Family._

It was founded upon the marriage of one man to several wives. The term is here used in a restricted sense to define the special family of the Hebrew pastoral tribes, the chiefs and principal men of which practiced polygamy. It exercised but little influence upon human affairs for want of universality.

V. _The Monogamian Family._

It was founded upon the marriage of one man with one woman, with an exclusive cohabitation; the latter constituting the essential element of the institution. It is pre-eminently the family of civilized society, and was therefore essentially modern. This form of the family also created an independent system of consanguinity.

Evidence will elsewhere be produced tending to show both the existence and the general prevalence of these several forms of the family at different stages of human progress.