(en) Robert FitzRoy, Narrative of the surveying voyages of His Majesty's Ships Adventure and Beagle between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle's circumnavigation of the globe. Appendix to Volume II publication-place= London, Henry Colburn, (lire en ligne)
(en) R. D. Keynes, Charles Darwin's Beagle diary, Cambridge University Press, (lire en ligne), p. 447