CHAPTER XV.

_Down the Columbia._

Umatilla.--Indians.--A Mr. Micawber.--Steamboats.--Capt. Stump.--Oregon Steam Navigation Company.--The Columbia and its Tributaries.--Indians.--"Calico" Horses.--Celilo.--Railroad Portages.--Shooting the Rapids in a Steamboat.--The Dalles.--Upper Cascades.--Lower Cascades.--Wild and Picturesque River Scenery.--Cascade Mountains.--Cañon of the Columbia.--Castle Rock.--Mount Hood.--Hood from the Columbia.--Quick Changes of Climate.--Coast Region and Rains.--Fellow-passengers. 250-260