51 | The effects of flow reduction in the River Dee on the aquatic environment |
52 | The influx of black magnetic spherules to the lakes of the English Lake District |
53 | The drought of 1995 : a report to the Secretary of State for the Environment |
54 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
55 | Angle on the Broads : helping you get the most out of fishing on the Broads |
56 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
57 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |
58 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
59 | Back to life : bringing the environment back to the people of the North West |
60 | Study into the effect of Chertsey STW on the North Arm of the River Bourne |
61 | The Natural (Baseline) Quality Of Groundwaters In England And Wales. The Chalk Of The South Downs |
62 | Fish Tanks in the Hatchery |
63 | The Ferry Boat in 1905 |
64 | The industrial fishery for sandeels |
65 | Annex to 'achieving the quality' |
66 | Welcome to the Essex catchment |
67 | Algae demonstrations in the lab |
68 | Paleolimnological Approaches to the WFD |
69 | Guide to the Medway navigation |
70 | Water in the Thetford area
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71 | The River Ash : enhancement project |
72 | The Development of LandSim 2.5 |
73 | The River Darent conservation project |
74 | Meanders in the Amazon River |
75 | Air quality and the environment |