wares of the coast, while monopolizing their market for the inland furs.
Such was the position of the Ugalentz tribe of Tlingits near the mouth
of the Copper River in relation to the up-stream Athapascans; of the
Kinik tribe at the head of Cook's Inlet in relation to the inland
Atnas,[245] of the Chilcats of Chilkoot Inlet to the mountain Tinnehs.
Similarly, the hunting folk of the Kalahari Desert in South Africa
attach themselves to influential tribesmen of the adjacent Bechuana
grasslands, in order to exchange the skins of the desert animals for
spears, knives, and tobacco.[246] Fertile agricultural lands adjoining
pastoral regions of deserts and steppes have in all times drawn to their
border markets the mounted plainsmen, bringing the products of their
herds to exchange for grain; and in all times the abundance of their
green fields has tempted their ill-fed neighbors to conquest, so that
the economic bond becomes a preliminary to a political bond and an
ethnic amalgamation growing out of this strong vicinal location. The
forest lands of Great Russia supplement the grain-bearing Black Lands
of Little Russia; the two are united through geographico-economic
conditions, which would not permit an independent existence to the
smaller, weaker section of the south, ever open to hostile invasion from
Asia.[247]

[Sidenote: Types of location.]

Leaving now the ethnic and economic ties which may strengthen the
cohesive power of such vicinal grouping, and considering only its purely
geographic aspects, we distinguish the following types:

I. Central location. Examples: The Magyars in the Danube Valley;
the Iroquois Indians on the Mohawk River and the Finger Lakes;
Russia from the 10th to the 18th century; Poland from 1000 to its