2276 | Paraleptophlebia tumida |
2277 | Cilate, |
2278 | Catches of Brown Trout in the River Don - Preliminary analysis of Angler's Returns |
2279 | Decommissioning redundant boreholes and wells |
2280 | River Foss flood alleviation scheme |
2281 | Demands and resources of water undertakers in England and Wales : preliminary report under Section 143(2)(a) Water Act 1989 |
2282 | Herbarium Image: Circaea x intermedia |
2283 | Hydra, |
2284 | Micrasterias, |
2285 | Herbarium Image: Festuca arundinacea |
2286 | Herbarium Image: Eupatorium cannabinum |
2287 | Spirogyra group, |
2288 | Herbarium Image: Helictotrichon pubescens |
2289 | Phacus, |
2290 | Herbarium Image: Undetermined |
2291 | Herbarium Image: Potamogeton x angustifolius |
2292 | Scenedesmus, |
2293 | Regional water quality monitoring and surveillance programme for 1992 : biological quality assessment of rivers |
2294 | Oscillatoria (Planktothrix), |
2295 | Herbarium Image: Pinguicula lusitanica |
2296 | River Exe catchment management plan : action plan (1996) |
2297 | Herbarium Image: Chara aculeolata |
2298 | Herbarium Image: Huperzia selago |
2299 | The River Cam catchment management plan : annual monitoring report |
2300 | Zygorhizidium |