Eight Books on Fishing Aquatic Insects - Outlines of Entomology 1949 A.D Imms, Life in Lakes and Rivers 1962 T.T Macan and E.B Worthington, An Illustrated Guide to the Mountain Stream Insects of Colorado 2nd Edition 2002 J.V Ward, B.C Kondratieff and R.E Zuellig, Insect Natural History 1973 A.D Imms, A Guide to Freshwater Invertebrate Animals 1960 T.T Macan (ex lib), Troutfishers Entomology An Elementary Treatise on Natural Flies 1930 Charles Wauton, The Observer;s Book of Pond Life, Dragonflies and Damselflies of California 2003 Tim Manolis - mixed condition