| 6626 | Herbarium Image: Elodea sp. |
|---|
| 6627 | Herbarium Image: Carex aquatilis |
|---|
| 6628 | Herbarium Image: Persicaria amphibia |
|---|
| 6629 | Herbarium Image: Persicaria amphibia |
|---|
| 6630 | Herbarium Image: Persicaria hydropiper |
|---|
| 6631 | Herbarium Image: Eleocharis palustris |
|---|
| 6632 | Herbarium Image: Persicaria amphibia |
|---|
| 6633 | Herbarium Image: Schoenoplectus lacustris |
|---|
| 6634 | Herbarium Image: Schoenoplectus tabernaemontani |
|---|
| 6635 | Best Management Practices to Reduce Diffuse Pollution from Agriculture |
|---|
| 6636 | A report on the use of pesticides at two Hampshire watercress farms |
|---|
| 6637 | A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive |
|---|
| 6638 | Radiation Experiments on Aquatic Organisms |
|---|
| 6639 | Impact Of Conifer Harvesting And Replanting On Upland Water Quality |
|---|
| 6640 | Porth, Gluvian and Menalhyl catchment river water quality classification 1990 |
|---|
| 6641 | River Cober catchment river water quality classification 1991 |
|---|
| 6642 | River Fal catchment river water quality classification 1990 |
|---|
| 6643 | Fact sheet for the RBCA tool kit for chemical releases |
|---|
| 6644 | River Fal catchment river water quality classification 1991 |
|---|
| 6645 | River Par and Crinnis catchment river water quality classification 1990 |
|---|
| 6646 | River Par and Crinnis catchment river water quality classification 1991 |
|---|
| 6647 | St Austell River and south Cornwall coastal streams catchment river water quality classification 1990 |
|---|
| 6648 | The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall |
|---|
| 6649 | A draft code of practice for analytical quality control in National Rivers Authority laboratories |
|---|
| 6650 | Control samples for ph determination in low ionic strength waters |
|---|
