volcanoes, including Vesuvius and Etna, icebergs and Arctic exploration, including Intrepid in Baffin's Bay and the aurora borealis, the total eclipse seen in Spain in 1860, scenes of geological interest in Mull, Ireland, Dorset and Somerset, mountains and waterfalls in South America, and other views in Iceland, rural England, Jamaica, St Helena and elsewhere, most probably derived from published illustrations from the 1820s to 1860s, pen and ink or pencil drawings, many with watercolour or a monochrome wash, on wove paper watermarked 1837, some captioned, most working loose or detached in an oblong 8vo sketchbook in half-calf over marbled boards, worn, [mid-19th century].