During Charles Darwin's 1831-6 voyage on the Beagle, his on-board library included 'Cook's voyages' (the edition is not specified). This illustrated 1821 edition, in seven volumes, is representative of the versions available in the early nineteenth century. Volumes 3 and 4 cover Cook's second voyage (1772-5), a key objective of which was to look for a continent in the Southern Ocean. The explorers sailed to 71 degrees South, within the Antarctic Circle, encountering stormy weather and icebergs, albatrosses and storm petrels. On this voyage, the ship's naturalists were Johann Reinhold Forster and his son Georg (1754-94), who is credited here as co-author. Volume 4 describes the flora, fauna and people of the New Hebrides and New Caledonia, the uninhabited Norfolk Island, and the voyage home via Cape Horn and Tierra del Fuego. The appendix contains a vocabulary of the Tahitian language as spoken in the Society Islands.