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Cite this: Darwin, Charles. 1844. Geological observations on the volcanic islands, visited during the voyage of H.M.S. Beagle : together with some brief notices on the geology of Australia and the Cape of Good Hope : being the second part of the geology of the voyage of the Beagle, .., London : Smith.Elder.and Co.65.Cornhill.
Original Caption: A Plan of the Island of Ascension
