A book of remarkable and thrilling adventures, very much in the style of Mr. Verne's previous books, and adapted to interest either boy-readers or adults. The 'Giant raft' is as immense as the 'Steam house,' and the characters and incidents quite as original. The story opens with the finding of a paper of hieroglyphics by an adventurer in a Brazilian forest-he puts it wiih some gold coin in a silver case, places it near his head, and falls asleep. The object excites the attention of a 'guariba