51 | The Ouse washes (folder) |
52 | Wetlands in the Midlands |
53 | The Severn Bore 1996 |
54 | Bacteriological survey : The Wash |
55 | The management of the water resources of the Lark groundwater unit |
56 | The management of the water resources of the Little Ouse groundwater unit |
57 | An aerial photograph of The Ferry House prior to the construction of The Pearsall Building |
58 | The water quality of the Humber Estuary 1992 : a report from The Humber Estuary Committee |
59 | The effects of flow reduction in the River Dee on the aquatic environment |
60 | The influx of black magnetic spherules to the lakes of the English Lake District |
61 | The drought of 1995 : a report to the Secretary of State for the Environment |
62 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
63 | Angle on the Broads : helping you get the most out of fishing on the Broads |
64 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
65 | Domesday to the dawn of the new millennium : 900 years of the Don Fishery |
66 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |
67 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
68 | Back to life : bringing the environment back to the people of the North West |
69 | Fish Tanks in the Hatchery |
70 | The Ferry Boat in 1905 |
71 | The industrial fishery for sandeels |
72 | The Soar Valley improvement scheme |
73 | Annex to 'achieving the quality' |
74 | The Aire catchment (river factfiles) |
75 | Protecting the Kenwith Valley, Bideford |