| author: | Darwin C |
| title: | Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage of the H.M.S. Beagle Round the World under the Command of Capt. Fitz Roy, R.N. |
| publication: | 2nd Edition, corrected, with additions. London: John Murray, Albemarle Street. 1845. 519 pages |
| year: | 1845 |