CHAPTER V.
Madeira and Mamoré Railway—Ocean steamers can ascend to the first rapid—Brazilian outposts—Difference between high and low water below the rapid—Rainfall—Temperature—Scenery—Marks on rocks—Glossy black deposit on rocks—Trees of the forest—Brazil nuts—Alligators—Peixebois, pirahybas, pirarucus, and other fish—Tapirs, how shot—Onças, and other animals—Birds, wild turkeys, ducks, etc.—Insects, mosquitoes, ants, etc.—Snakes, etc., etc. 23