Chapter X—the Upper Amazons — Voyage to Ega

Departure from Barra — First Day and Night on the Upper Amazons — Desolate Appearance of River in the Flood Season — Cucáma Indians — Mental Condition of Indians — Squalls — Manatee — Forest — Floating Pumice Stones from the Andes — Falling Banks — Ega and its Inhabitants — Daily Life of a Naturalist at Ega — The Four Seasons of the Upper Amazons.