Memoirs loosely classed as economic were produced. After the first, the 1843 Report on the geology of the County of Londonderry and of parts of Tyrone and Fermanagh the rest were published between 1910 and 1923. One, 'On rock specimens dredged from the floor of the Atlantic off the coast of Ireland, and their bearing on submarine geology' is notable as it is the first memoir on offshore geology. Others covered iron ores and bauxites, barytes and minerals of economic importance, and metalliferous mines.