1. Charles Darwin, Geologist;Herbert,2005
2. C. Lyell, Principles of Geology. Being an attempt to explain the former changes of the earth's surface by reference to causes now in operation, 3 vol., Murray, London, 1830–1833.
3. Voyage of the Beagle, introduction by Janet Browne and Michael Neve;Darwin,1989
4. Geological observations on South America;Darwin,1890
5. C. Darwin, Journal and remarks (1832–1836), in: R. Fitzroy (Ed) Narrative of the surveying voyages of His Majesty's ships adventure and Beagle H. Colburn, London, 1839.