Few men were better placed to produce an authoritative study of Continental geology than Roderick Impey Murchison (1792-1871), President of the Geological Society and the Royal Geographical Society of London. Having conducted extensive fieldwork alongside Adam Sedgwick, in 1847 Murchison set out on a study tour that would change the manner in which geology was understood and debated. Delivered before the Geological Society and published in their Quarterly...