An interesting series of little known publications on overseas work undertaken by the early Geological Survey. Only three publcations were issued: Report on the geology of Trinidad (1860); Reports on the geology of Jamaica (1869); Reports on the physical, descriptive and economic geology of British Guiana (1875). Later overseas work was undertaken by the Imperial Institute until its succesors (Colonial Geological Survey/Overseas Geological Survey) merged with the Institute of Geological Sciences in 1965.