The wide-eyed tale of a young man on a five-year voyage that changed his life -- and our way of thinking about the world. First published in 1839, this book is still essential reading. Darwin's South American chapters are an excellent introduction to the Galapagos, Beagle Channel, Chile, Tierra del Fuego, the Chilean fjords and the Brazilian coast. With maps and appendices.  (GPS02, $12.95)