| Title | Authors | Year | 
|---|---|---|
| Afforestation and Lake Acidification: A Comparison of Four Sites in Scotland. | 
                               Kreiser, A.…  | 
                                                                                        1990 | 
| Sediment chemistry and atmospheric contamination | 
                               Rippey, B…  | 
                                                                                        1990 | 
| Effects of nitrogen dioxide pollution on the growth of 3 fern species. | 
                               Ashenden, T…  | 
                                                                                        1990 | 
| Large Lakes: ecological structure and function | 
                               Kilham, S.S…  | 
                                                                                        1990 | 
| The difficulties of abating smoke in Late Victorian York | 
                               Bowler, C…  | 
                                                                                        1990 | 
| The variation in the acidity of ground and surface waters in Northern Ireland | 
                               Jordan, C…  | 
                                                                                        1990 | 
| Cation-exchange properties and adaptation to soil acidity in bryophytes | 
                               Buscher, P…  | 
                                                                                        1990 | 
| Epiphyte recolonization of oaks along a gradient of air pollution in south-east England, 1979-1990. | 
                               Bates, J.W…  | 
                                                                                        1990 | 
| Eutrophication: assessment, research and management with special reference to Scotland's Freshwaters | 
                               Bailey-…  | 
                                                                                        1990 | 
| Cadmium uptake and toxicity to water hyacinth: effect of repeated exposures under controlled conditions | 
                               Nir, R ;…  | 
                                                                                        1990 |