| 6951 | Herbarium Image: Elodea sp. |
|---|
| 6952 | Herbarium Image: Carex aquatilis |
|---|
| 6953 | Herbarium Image: Persicaria amphibia |
|---|
| 6954 | Herbarium Image: Persicaria amphibia |
|---|
| 6955 | Herbarium Image: Persicaria hydropiper |
|---|
| 6956 | Herbarium Image: Eleocharis palustris |
|---|
| 6957 | Herbarium Image: Persicaria amphibia |
|---|
| 6958 | Herbarium Image: Schoenoplectus lacustris |
|---|
| 6959 | Herbarium Image: Schoenoplectus tabernaemontani |
|---|
| 6960 | Best Management Practices to Reduce Diffuse Pollution from Agriculture |
|---|
| 6961 | A report on the use of pesticides at two Hampshire watercress farms |
|---|
| 6962 | A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive |
|---|
| 6963 | Radiation Experiments on Aquatic Organisms |
|---|
| 6964 | Impact Of Conifer Harvesting And Replanting On Upland Water Quality |
|---|
| 6965 | Porth, Gluvian and Menalhyl catchment river water quality classification 1990 |
|---|
| 6966 | River Cober catchment river water quality classification 1991 |
|---|
| 6967 | River Fal catchment river water quality classification 1990 |
|---|
| 6968 | Fact sheet for the RBCA tool kit for chemical releases |
|---|
| 6969 | River Fal catchment river water quality classification 1991 |
|---|
| 6970 | River Par and Crinnis catchment river water quality classification 1990 |
|---|
| 6971 | River Par and Crinnis catchment river water quality classification 1991 |
|---|
| 6972 | St Austell River and south Cornwall coastal streams catchment river water quality classification 1990 |
|---|
| 6973 | The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall |
|---|
| 6974 | A draft code of practice for analytical quality control in National Rivers Authority laboratories |
|---|
| 6975 | Control samples for ph determination in low ionic strength waters |
|---|
