51 | The Waterways Bird Survey |
52 | The Evaluation of FDMM |
53 | The Colne Barrier 1999 |
54 | The Ouse washes (folder) |
55 | Sussex by the sea |
56 | Wetlands in the Midlands |
57 | The Severn Bore 1996 |
58 | Bacteriological survey : The Wash |
59 | The management of the water resources of the Lark groundwater unit |
60 | Review of the findings of the prescribed flow at the Wallers Haven |
61 | The management of the water resources of the Little Ouse groundwater unit |
62 | An aerial photograph of The Ferry House prior to the construction of The Pearsall Building |
63 | The water quality of the Humber Estuary 1992 : a report from The Humber Estuary Committee |
64 | The effects of flow reduction in the River Dee on the aquatic environment |
65 | The influx of black magnetic spherules to the lakes of the English Lake District |
66 | The drought of 1995 : a report to the Secretary of State for the Environment |
67 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
68 | Angle on the Broads : helping you get the most out of fishing on the Broads |
69 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
70 | Domesday to the dawn of the new millennium : 900 years of the Don Fishery |
71 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |
72 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
73 | Back to life : bringing the environment back to the people of the North West |
74 | The Natural (Baseline) Quality Of Groundwaters In England And Wales. The Chalk Of The South Downs |
75 | Fish Tanks in the Hatchery |