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5261967 - Quakers arriving on the shore of L.George.
527First annual review of the Taw/Torridge estuary catchment management plan (1996)
528Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
529Method for the assessment of river water quality using benthic macroinvertebrates
530The evaluation of a Philips ammonium ion selective electrode (220/14/T)
531The greening of Grasmere: its plankton periodicity in 1988
532A strategic review of the petroleum refinery Industry Sector
533Guidelines for river corridor surveys in the NRA : February 1992. draft 3
534Second annual review of the Sid/Otter catchment management plan 1999
535Contribution of small streams to potential fish production in the Conwy catchment
536Low-cost modifications of the Crump weir to improve fish passage
537'Sea Vigil' water quality monitoring : the Wash 1992-1993
538Second annual review of the Seaton, Looe and Fowey catchment management plan
539The Yarrow catchment : recommendations for statutory water quality objectives
540The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
541The National Rivers Authority employee attitude survey : summary
542The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
543Pesticides in the aquatic environment 1997 : executive summary
544The Louth coastal catchment management plan : final report
545Draft protocol for the derivation of Toxicity Based Consents
546The Loddon catchment, Thames : recommendations for statutory water quality objectives
547Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
548Second Coniston OS map related to the Seismic Survey 1983
549Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
550Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983