A long running grouping of non-coal and mostly metallic mineral memoirs spanning the period from 1856 to 1990. The first four volumes between 1856-61 were the Iron Ores of Great Britain. There was a big gap until 1948 and the Geology of the Northern Pennine Orefield followed by two memoirs on the Northampton Sand Ironstone and another on the Liassic Ironstones.