| 1851 | Herbarium Image: Potamogeton crispus |
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| 1852 | Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings |
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| 1853 | Tabellaria |
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| 1854 | Stephanodiscus, |
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| 1855 | NRA Research and Development programme - 1994/95 and 1995/96 : schedule of on-going projects 1994/95 and proposed new starts in 1994/95 and 1995/96 |
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| 1856 | River Yealm catchment river water quality classification 1990 |
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| 1857 | Water resources development strategy : resource scheme costings. Supplementary report no. 6 |
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| 1858 | Melosira, |
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| 1859 | Herbarium Image: Hypericum tetrapterum |
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| 1860 | River pollution and how to avoid it |
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| 1861 | Herbarium Image: Carex laevigata |
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| 1862 | Cladophora-ball, |
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| 1863 | Pediastrum, |
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| 1864 | Herbarium Image: Nasturtium officinale |
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| 1865 | Herbarium Image: Potamogeton crispus |
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| 1866 | The precious resource : a brief guide to managing our water resources |
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| 1867 | The industrial fishery for sandeels |
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| 1868 | Assessment of freshwater riverine environments using macrophytes : standard methodologies : final draft : biology laboratory procedures manual. Section C : test methods and procedures |
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| 1869 | Lembadion, |
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| 1870 | Herbarium Image: Chara aculeolata |
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| 1871 | Herbarium Image: Sanguisorba officinalis |
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| 1872 | Herbarium Image: Veronica anagallis-aquatica |
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| 1873 | The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984 |
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| 1874 | Herbarium Image: Carex otrubae |
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| 1875 | River Lim catchment river water quality classification 1990 |
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