egulated Promiscuity. This again falls into (_a_) primary regulated
promiscuity, the hypothetical stage postulated for Australia before the
introduction of individual marriage; and (_b_) secondary regulated
promiscuity, which is found in certain tribes as an exceptional
practice. With this custom I deal in greater detail below.

B. MARRIAGE.

III, Polygamy. This state is constituted by the union of several men
with several women. It may be distinguished, as before, into primary and
secondary polygamy. We may further distinguish (_[alpha]_) simple
and (_[beta]_) adelphic polygamy; and the latter may be (i)
unilateral or (ii) bilateral, according as either the males or females,
or both males and females, are brothers and sisters. A further
sub-division is constituted by the relations of the groups of males or
females, or both, within themselves. I distinguish these unions by the
names of dissimilar (M.) and dissimilar (F.) according as one husband or
one wife has a position superior to the others[142].

IV, Polyandric and V. polygynic unions fall into the same divisions,
save that they are naturally always unilateral. As a designation for the
hypothetical stage postulated by Mr Atkinson in _Primal Law_, we may
take "patriarchal polygyny," meaning thereby the state in which (_a_) in
the earlier stage all the females of the horde[143] are _ipso facto_
mates of the one adult male of the horde; or (_b_) in the second stage
all females born in the horde are equally allotted to him.

Finally we have VI, monogamy.

To the three forms of marriage we can apply the determinants "regulated"
and "unregulated," "temporary[144]," "permanent," as in the case of
promiscuity.

We have further two well-marked types of marriage and a mixed form in
which (_a_) the husband goes to live with the wife; (_b_) he lives with
the wife for a time and then removes to his own village or tribe; and
(_c_) the wife removes to the husband. For the first of these Maclennan
has proposed the name _beena_ marriage; Robertson Smith has proposed to
call the third type _ba[']al_ marriage, and to include both _beena_ and
_mot[']a_ marriages under the general name of _[s.]ad[=i]ca_. This
terminology is unnecessarily obscure and has the further disadvantage of
connoting the domination or subjection of the husband, a feature not
necessarily bound up with residence. I therefore propose to term the
three types matrilocal, removal, and patrilocal marriages. I s