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