4926 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
4927 | The Don, Rother and Dearne catchment (river factfiles) |
4928 | River Dart catchment river water quality classification 1991 |
4929 | Head Office plan 1995/96 |
4930 | Bathing waters report 1991 |
4931 | Policy and practice for the protection of groundwater |
4932 | A review of Consented Trout Stockings into Riverine Environments |
4933 | Creation of Natural Assets Registers Using River Habitat Surveys |
4934 | Enhancing the River Otter |
4935 | Herbarium Image: Elodea sp. |
4936 | Herbarium Image: Calamagostris canescens |
4937 | Herbarium Image: Calamagostris epigejos |
4938 | Herbarium Image: Calamagostris canescens |
4939 | Herbarium Image: Carex echinata |
4940 | Herbarium Image: Carex nigra |
4941 | Herbarium Image: Myriophyllum alterniflorum |
4942 | Herbarium Image: Najas flexilis |
4943 | Herbarium Image: Najas marina |
4944 | Herbarium Image: Najas flexilis |
4945 | Arctic charr from Ennerdale Water : a pilot study |
4946 | Herbarium Image: Alnus incana |
4947 | Herbarium Image: Sparganium erectum |
4948 | Herbarium Image: Elodea sp. |
4949 | Herbarium Image: Elodea sp. |
4950 | Herbarium Image: Elodea sp. |