| 1 | The Pearsall Building |
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| 2 | The Opening Ceremony of The River Laboratory |
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| 3 | The Ferry Boat, Windermere |
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| 4 | Inflating the Lund Tubes |
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| 5 | An aerial photograph of The Ferry House prior to the construction of The Pearsall Building |
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| 6 | Advertisement for the Letting of The Ferry Inn |
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| 7 | Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change |
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| 8 | Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River |
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| 9 | Aerial view of the River Laboratory |
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| 10 | Reed cutter used at the River Lab |
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| 11 | A demonstration of the use of a framework for the ecological risk assessment of land contamination |
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| 12 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
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| 13 | Biological investigation into the impact of the storm overflow at Middle Marwood Sewage Treatment Works |
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| 14 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
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| 15 | The influence of zinc sulphate solution on the fauna of chalk stream channels
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| 16 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
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| 17 | Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993 |
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| 18 | The Use Of DNA Fingerprinting To Study The Population Dynamics Of Otters (Lutra Lutra) In Southern Britiain - A Feasibility Study |
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| 19 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
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| 20 | The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984 |
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| 21 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
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| 22 | An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys |
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| 23 | Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph |
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| 24 | Guidance on the use of Bioassays in Ecological Risk Assessment |
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| 25 | Quality audit of biological samples for the 1990 river quality survey |
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