51 | The River Test. 1991. |
52 | Enhancing the River Tamar |
53 | Drought : the dry facts |
54 | The Lowermoor environment report |
55 | The Waterways Bird Survey |
56 | Fishing in the South |
57 | The Evaluation of FDMM |
58 | Enhancing the River Otter |
59 | The Colne Barrier 1999 |
60 | The Ouse washes (folder) |
61 | Sussex by the sea |
62 | Wetlands in the Midlands |
63 | Bacteriological survey : The Wash |
64 | The management of the water resources of the Lark groundwater unit |
65 | Review of the findings of the prescribed flow at the Wallers Haven |
66 | The management of the water resources of the Little Ouse groundwater unit |
67 | An aerial photograph of The Ferry House prior to the construction of The Pearsall Building |
68 | The water quality of the Humber Estuary 1992 : a report from The Humber Estuary Committee |
69 | The effects of flow reduction in the River Dee on the aquatic environment |
70 | The influx of black magnetic spherules to the lakes of the English Lake District |
71 | The drought of 1995 : a report to the Secretary of State for the Environment |
72 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
73 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
74 | Domesday to the dawn of the new millennium : 900 years of the Don Fishery |
75 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |