Flett, John (1937). The First Hundred Years of the Geological Survey of Great Britain. London: HMSO. 1^st edition. 280 pp. + foldout group portrait. Hardback, blue cloth-covered boards with gilt lettering to spine and front cover. Binding sound, moderate shelf-wear and bumped. Library stamps on front free-endpaper, title, contents pages and throughout text. Text otherwise unmarked and age-toned. Published on the centenary of the Survey, there are many portraits of directors and regional chief geologists including a fold out photograph of the entire staff. In good condition.