In Proust’s Swann’s Way , the narrator’s grandmother is described as one who inculcates in her grandson a reverence for the “elevated ideals.” Infinitely disdainful of the mechanical nature of replica, when shown photograph of the magnificent Mount Vesuvius his grandmother dismisses it with a lofty query as of whether other more acknowledged artists did paintings of the volcano in the first place. She is having in mind the great J.M.W. Turner, whose depiction of Vesuvius in flame displays, in her view, “a stage higher in the scale of art.” The enduring fascination with volcanoes was especially evident in the 19 th century, which saw an irregularly high frequency of Vesuvius eruptions that, at the time, alarmed many of the imminent cataclysm that a thousand of years before destroyed the city of Pompeii. Turner, according to a number of sources, may not be amongst the first-hand witnesses of those eruptions, but badgered his geologist friends, John MacCulloch and Charles Stoke...