76 | Guardian of the water environment |
77 | Colliery closures in the Midlands : a review of the potential impact of colliery closures on the water environment in the Midlands |
78 | The Tyne catchment (river factfiles) |
79 | The Calder catchment (river factfiles) |
80 | Annex to 'achieving the quality' |
81 | Road transport and the environment |
82 | The Ferry Boat in 1905 |
83 | The Esk catchment (river factfiles) |
84 | River in the Dourdogne region |
85 | Welcome to the Essex catchment |
86 | Fish Tanks in the Hatchery |
87 | The industrial fishery for sandeels |
88 | Viruses in the aquatic environment |
89 | The Derwent catchment (river factfiles) |
90 | Air quality and the environment |
91 | Algae demonstrations in the lab |
92 | The River Darent conservation project |
93 | The Northumberland catchment (river factfiles) |
94 | The Soar Valley improvement scheme |
95 | Water in the Thetford area
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96 | Conservation in the Anglian region |
97 | The River Alt : fact file |
98 | The registration of waste carriers |
99 | The Wear catchment (river factfiles) |
100 | The River Mersey : fact file |