![Darwin, C. R. 1844. Geological observations on the volcanic islands visited during the voyage of H.M.S. Beagle, together with some brief notices of the geology of Australia and the Cape of Good Darwin, C. R. 1844. Geological observations on the volcanic islands visited during the voyage of H.M.S. Beagle, together with some brief notices of the geology of Australia and the Cape of Good](http://darwin-online.org.uk/converted/scans/1844_VolcanicIslands_F272(online)/1844_VolcanicIslands_F272_165.jpg)
Darwin, C. R. 1844. Geological observations on the volcanic islands visited during the voyage of H.M.S. Beagle, together with some brief notices of the geology of Australia and the Cape of Good
![Herbert, S. ed. 1980. The red notebook of Charles Darwin. Bulletin of the British Museum (Natural History) Historical Series 7 (24 April): 1-164. Herbert, S. ed. 1980. The red notebook of Charles Darwin. Bulletin of the British Museum (Natural History) Historical Series 7 (24 April): 1-164.](http://darwin-online.org.uk/converted/scans/1980_RedNotebook_F1583e(online)/1980_RedNotebook_F1583e_099.jpg)
Herbert, S. ed. 1980. The red notebook of Charles Darwin. Bulletin of the British Museum (Natural History) Historical Series 7 (24 April): 1-164.
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