Five Books on Fishing Aquatic Insects - A Revised Key to the British Water Bugs (Hemiptera-Heteroptera) 1956 T.T Macan, A Key to the Adults of the British Trichoptera 1973 T.T Macan, A Revised Key to the Adults of the British Species of Ephemeroptera with Notes on their Ecology 1972 D.E Kimmins, A Pictorial Guide to British Ephemeroptera 2010 Craig Macadam and Cyril Bennett, A Key to the Nymphs of British Ephemeroptera 1979 T.T Macan (ex lib) - mixed condition