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3576Herbarium Image: Achillea ptarmica
3577New style charging schemes for discharges and abstractions (Note 16)
3578Proposed scheme of abstraction charges 1993-94
3579Flood risk management in North Wessex area : be prepared for flooding
3580The National Rivers Authority employee attitude survey : summary
3581The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
3582Factors affecting natural smolt production
3583The disposal of sheep dip waste (R and D Report 11) : effects on water quality
3584Dugesia tigrina,
3585Herbarium Image: Potamogeton berchtoldii
3586Diagnostic Drawing: Chaetophora and related genera,
3587Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
3588Restoration of riverine fisheries habitats - progress report for period October 1991 - March 1992
3589Pesticides in the aquatic environment 1997 : executive summary
3590Diagnostic Drawing: Codiaceae,
3591Fertiliser application dates: AC0213, Northumberland, 2012
3592River quality classification 1985-1990 : reasons for non-compliance
3593Investigation of the impact on water quality of the SWW Teign estuary sewerage trenching activity
3594Weather data: AC0213, Devon, 2011
3595The Opening Ceremony of The River Laboratory
3596Herbarium Image: Achillea ptarmica
3597Cover of A Key to the Adults and Nymphs of the British Stoneflies (Plecoptera), with Notes on their Ecology and Distribution
3598Monitoring Changes in Regional Ground Level, Using High Precision GPS
3599Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk F
3600Herbarium Image: Andromeda polifolia