4751 | Herbarium Image: Sparganium angustifolium |
4752 | Herbarium Image: Sparganium angustifolium |
4753 | Herbarium Image: Sparganium erectum |
4754 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
4755 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
4756 | The Don, Rother and Dearne catchment (river factfiles) |
4757 | River Dart catchment river water quality classification 1991 |
4758 | Head Office plan 1995/96 |
4759 | Bathing waters report 1991 |
4760 | Policy and practice for the protection of groundwater |
4761 | A review of Consented Trout Stockings into Riverine Environments |
4762 | Creation of Natural Assets Registers Using River Habitat Surveys |
4763 | Enhancing the River Otter |
4764 | Herbarium Image: Elodea sp. |
4765 | Herbarium Image: Calamagostris canescens |
4766 | Herbarium Image: Calamagostris epigejos |
4767 | Herbarium Image: Calamagostris canescens |
4768 | Herbarium Image: Carex echinata |
4769 | Herbarium Image: Carex nigra |
4770 | Herbarium Image: Myriophyllum alterniflorum |
4771 | Herbarium Image: Najas flexilis |
4772 | Herbarium Image: Najas marina |
4773 | Herbarium Image: Najas flexilis |
4774 | Arctic charr from Ennerdale Water : a pilot study |
4775 | Herbarium Image: Alnus incana |