Charles Darwin's travels around the world as an independent naturalist on HMS Beagle between 1831 and 1836 impressed upon him a sense of the natural world's beauty, sublimity and otherness which language could barely capture. This journal takes the reader from the coasts and interiors of South America to the South Sea Islands. It displays Darwin's speculative mind at work, posing searching questions about the complex relations between the Earth's structure, animal forms, anthropology and the origins of life itself.