1901 | Melosira, |
1902 | Herbarium Image: Hypericum tetrapterum |
1903 | River pollution and how to avoid it |
1904 | Herbarium Image: Carex laevigata |
1905 | Cladophora-ball, |
1906 | Pediastrum, |
1907 | Herbarium Image: Nasturtium officinale |
1908 | Herbarium Image: Potamogeton crispus |
1909 | The precious resource : a brief guide to managing our water resources |
1910 | The industrial fishery for sandeels |
1911 | Assessment of freshwater riverine environments using macrophytes : standard methodologies : final draft : biology laboratory procedures manual. Section C : test methods and procedures |
1912 | Lembadion, |
1913 | Herbarium Image: Chara aculeolata |
1914 | Herbarium Image: Sanguisorba officinalis |
1915 | Herbarium Image: Veronica anagallis-aquatica |
1916 | The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984 |
1917 | Herbarium Image: Carex otrubae |
1918 | River Lim catchment river water quality classification 1990 |
1919 | Herbarium Image: Carex elata |
1920 | Strategy for groundwater investigations and modelling : Anglian Region |
1921 | Eremosphaera, |
1922 | Herbarium Image: Ceratophyllum demersum |
1923 | Draft waste regulation strategy : Environment Agency functional strategies. Consultation document |
1924 | Oedogonium, |
1925 | Herbarium Image: Minuartia verna |