Note 88 — Chapter II · GEOGRAPHICAL DISTRIBUTION OF SLAVERY.

Gibbs describes the tribes of Western Washington and North-Western Oregon in general. The principal of these tribes are the Chinooks and the tribes about Puget Sound. “Slavery,” says Gibbs, “is thoroughly interwoven with the social policy of the Indians of the coast section of Oregon and Washington Territory. East of the Cascades, though it exists, it is not so common.… Southward it ceases, so far as my observation has gone, with the Siskiou Mountains, which divide Oregon from California”88.