The, Quarterly, Journal, of, the, Geological, Society, of, London, v, 11, 1855, London, geology, periodicals, The illustration depicts a geological cross-section illustrating the stratigraphy of a particular area, potentially located near a region called 'Bodmin.' Detailed annotations indicate various geological layers and features, including sediment types, thickness measurements, and structural formations. Key elements include labels denoting specific rock types and historical geological events, highlighted by precise measurements that help in understanding the geological history of the site. The illustration serves as a valuable resource for geologists and researchers studying the area's geological composition and structure.