6476 | River Wylye : analysis and modelling of phosphates |
6477 | Eradication of Alien Crayfish Populations |
6478 | Hydrometry : the science of measuring the water cycle |
6479 | Maidenhead, Windsor and Eton flood alleviation scheme - water quality proof : public enquiry September 1992 |
6480 | Herbarium Image: Ranunculus sp. |
6481 | Herbarium Image: Ranunculus trichophyllus |
6482 | Herbarium Image: Ranunculus trichophyllus |
6483 | Herbarium Image: Ranunculus sceleratus |
6484 | Herbarium Image: Ranunculus sceleratus |
6485 | Herbarium Image: Ranunculus reptans |
6486 | Herbarium Image: Ranunculus penicillatus subsp. pseudofluitans |
6487 | Herbarium Image: Ranunculus omiophyllus |
6488 | Herbarium Image: Ranunculus aquatilis |
6489 | Herbarium Image: Potamogeton obtusifolius |
6490 | Herbarium Image: Ranunculus aquatilis |
6491 | Herbarium Image: Ranunculus aquatilis |
6492 | Flood defence and land drainage : a guide for people living near rivers and streams, including land drainage byelaws |
6493 | Herbarium Image: Ranunculus aquatilis |
6494 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England; |
6495 | Herbarium Image: Chara hispida |
6496 | Herbarium Image: Fontinalis antipyretica |
6497 | Herbarium Image: Hippuris vulgaris |
6498 | Herbarium Image: Lemna trisulca |
6499 | Herbarium Image: Lemna gibba |
6500 | Herbarium Image: Lemna trisulca |