Voyage of the Beagle chronicles Charles Darwin's five years (three years and three months on land; 18 months at sea) as a naturalist on board the H.M.S. Beagle. The notes and observations that he recorded in his diary included Chile, Argentina and Galapagos Islands and encompasses the ecology, geology and anthropology of the places he visits, especially his illustrating his changing views are wonderful. Although Darwin revisited some areas during the expedition, for clarity the chapters of the book are ordered by reference to places and locations rather than chronologically. A fascinating travel memoir the ideas that were later to evolve into Darwin's theory of natural selection find their naissance in Voyage of the Beagle.