The adaptation of the tribal structure to meet changing political conditions is a problem to-day, and this article gives the summary of an effort in that direction. It refers to a portion of the Nyamwezi tribe in Tanganyika Territory, and should be read in that restricted light.

The present organization is made up of one cohesive unit, to which are attached various vassal sections. The undermentioned are the titles of the various ranks recognized, though some had fallen into desuetude.