Smith. Folklore of the Amazonian Indians.

Today's free book is Brazil, the Amazons and the coast by Herbert H. Smith (1879), which contains a chapter entitled: Myths and Folklore of the Amazonian Indians. For the table of contents of that chapter, check at the bottom of this post below the image.

The book is available at Hathi Trust (I have not checked for other online sources).

Table of Contents

The Tortoise, The Monkeys, and the Jaguar
The Tortoise Who Deceived the Jaguar and Killed him
Origin of the Tortoise's Shell
How the Tortoise Outran the Deer
How the Tortoise Provoked a Trial of Strength between the Tapir and the Whale
The Jaguar Who Wanted to Marry the Deer's Daughter
The Cotia Who Played Tricks on the Jaguar
The Cotia and the Lion
Be Careful to Whom you do Good Deeds
The Bird of the Evil Eye
Boia-Asu, The Great Water-Snake
The Flat-Feet
The Curupira
Another Curupira Story
Matinta-Pere
Jurupary
Caa-Pora, The Forest-Dweller
Anhanga
Ruda, The God of Love
Oiara, The Water-Maidens
The Amazon Myth
The Story of Mani
Theogony of the ancient Tupis