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