51 | The management of the water resources of the Lark groundwater unit |
52 | The management of the water resources of the Little Ouse groundwater unit |
53 | An aerial photograph of The Ferry House prior to the construction of The Pearsall Building |
54 | The water quality of the Humber Estuary 1992 : a report from The Humber Estuary Committee |
55 | The effects of flow reduction in the River Dee on the aquatic environment |
56 | The influx of black magnetic spherules to the lakes of the English Lake District |
57 | The drought of 1995 : a report to the Secretary of State for the Environment |
58 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
59 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
60 | Domesday to the dawn of the new millennium : 900 years of the Don Fishery |
61 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
62 | Back to life : bringing the environment back to the people of the North West |
63 | Study into the effect of Chertsey STW on the North Arm of the River Bourne |
64 | Fish Tanks in the Hatchery |
65 | The Ferry Boat in 1905 |
66 | The industrial fishery for sandeels |
67 | The Soar Valley improvement scheme |
68 | Annex to 'achieving the quality' |
69 | The Aire catchment (river factfiles) |
70 | Protecting the Kenwith Valley, Bideford |
71 | Welcome to the Essex catchment |
72 | The water bill : trickle irrigation |
73 | Guardian of the water environment |
74 | Algae demonstrations in the lab |
75 | The Tyne catchment (river factfiles) |