On the Geological Structure of the Madeiran Islands, 1856

On the Geological Structure of the Madeiran Islands by Sir Charles Lyell and Georg Hartung which is a summary of their observations during a visit to the Madeiran Islands in the winter of 1853-1854 and to three Canary islands, La Palma, Teneriffe and Grand Canary, in the Spring of 1854, with diagrams, 1856.