6451 | Foot and Mouth Disease Epidemic. Disposal of culled stock by burial : guidance and reference data for the protection of controlled waters |
6452 | Mount's Bay and Lands End streams catchment river water quality classification 1991 |
6453 | Herbarium Image: Luzula pilosa |
6454 | Herbarium Image: Tofieldia pusilla |
6455 | Herbarium Image: Luzula spicata |
6456 | Herbarium Image: Tofieldia pusilla |
6457 | Herbarium Image: Carex bigelowii |
6458 | Herbarium Image: Carex arenaria |
6459 | Herbarium Image: Elodea sp. |
6460 | Herbarium Image: Carex aquatilis |
6461 | Herbarium Image: Persicaria amphibia |
6462 | Herbarium Image: Persicaria amphibia |
6463 | Herbarium Image: Persicaria hydropiper |
6464 | Herbarium Image: Eleocharis palustris |
6465 | Herbarium Image: Persicaria amphibia |
6466 | Herbarium Image: Schoenoplectus lacustris |
6467 | Herbarium Image: Schoenoplectus tabernaemontani |
6468 | Best Management Practices to Reduce Diffuse Pollution from Agriculture |
6469 | A report on the use of pesticides at two Hampshire watercress farms |
6470 | A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive |
6471 | Radiation Experiments on Aquatic Organisms |
6472 | Impact Of Conifer Harvesting And Replanting On Upland Water Quality |
6473 | Porth, Gluvian and Menalhyl catchment river water quality classification 1990 |
6474 | River Cober catchment river water quality classification 1991 |
6475 | River Fal catchment river water quality classification 1990 |