51 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
52 | Study into the effect of Chertsey STW on the North Arm of the River Bourne |
53 | Angle on the Broads : helping you get the most out of fishing on the Broads |
54 | The Natural (Baseline) Quality Of Groundwaters In England And Wales. The Chalk Of The South Downs |
55 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |
56 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
57 | The effects of flow reduction in the River Dee on the aquatic environment |
58 | The water quality of the Humber Estuary 1992 : a report from The Humber Estuary Committee |
59 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
60 | The drought of 1995 : a report to the Secretary of State for the Environment |
61 | The influx of black magnetic spherules to the lakes of the English Lake District |
62 | Annex to 'achieving the quality' |
63 | Paleolimnological Approaches to the WFD |
64 | Fish Tanks in the Hatchery |
65 | The Calder catchment (river factfiles) |
66 | Algae demonstrations in the lab |
67 | The Ferry Boat in 1905 |
68 | The Aire catchment (river factfiles) |
69 | The Hull catchment (river factfiles) |
70 | The Esk catchment (river factfiles) |
71 | The River Ash : enhancement project |
72 | Dissemination of the anglian SDMS |
73 | Viruses in the aquatic environment |
74 | The Tyne catchment (river factfiles) |
75 | Welcome to the Essex catchment |