To be a member of the tribe it is necessary to be a member of a gens;
to be a member of a gens it is necessary to belong to some family; and
to belong to a family a person must have been born in the family so
that his kinship is recognized, or he must be adopted into a family
and become a son, brother, or some definite relative; and this
artificial relationship gives him the same standing as actual
relationship in the family, in the gens, in the phratry, and in the
tribe.

Thus a tribe is a body of kindred.

Of the four groups thus described, the gens, the phratry, and the
tribe constitute the series of organic units; the family, or household
as here described, is not a unit of the gens or phratry, as two gentes
are represented in each--the father must belong to one gens, and the
mother and, her children to another.


_GOVERNMENT._

Society is maintained by the establishment of government, for rights
must be recognized and duties performed.

In this tribe there is found a complete differentiation of the
military from the civil government.


_CIVIL GOVERNMENT._