| 6476 | Herbarium Image: Luzula pilosa |
|---|
| 6477 | Herbarium Image: Tofieldia pusilla |
|---|
| 6478 | Herbarium Image: Luzula spicata |
|---|
| 6479 | Herbarium Image: Tofieldia pusilla |
|---|
| 6480 | Herbarium Image: Carex bigelowii |
|---|
| 6481 | Herbarium Image: Carex arenaria |
|---|
| 6482 | Herbarium Image: Elodea sp. |
|---|
| 6483 | Herbarium Image: Carex aquatilis |
|---|
| 6484 | Herbarium Image: Persicaria amphibia |
|---|
| 6485 | Herbarium Image: Persicaria amphibia |
|---|
| 6486 | Herbarium Image: Persicaria hydropiper |
|---|
| 6487 | Herbarium Image: Eleocharis palustris |
|---|
| 6488 | Herbarium Image: Persicaria amphibia |
|---|
| 6489 | Herbarium Image: Schoenoplectus lacustris |
|---|
| 6490 | Herbarium Image: Schoenoplectus tabernaemontani |
|---|
| 6491 | Best Management Practices to Reduce Diffuse Pollution from Agriculture |
|---|
| 6492 | A report on the use of pesticides at two Hampshire watercress farms |
|---|
| 6493 | A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive |
|---|
| 6494 | Radiation Experiments on Aquatic Organisms |
|---|
| 6495 | Impact Of Conifer Harvesting And Replanting On Upland Water Quality |
|---|
| 6496 | Fact sheet for the RBCA tool kit for chemical releases |
|---|
| 6497 | A draft code of practice for analytical quality control in National Rivers Authority laboratories |
|---|
| 6498 | Control samples for ph determination in low ionic strength waters |
|---|
| 6499 | Proposals to introduce operator monitoring assessment for emissions to air from processes regulated under integrated pollution control : consultation paper |
|---|
| 6500 | Cryptosporidium in drinking water : survey of occurrence. June 1991 |
|---|
