| Title | Authors | Year | 
|---|---|---|
| The toxicity of 140 substances to the brown shrimp and other marine animals | 
                               Portmann, J…  | 
                                                                                        1971 | 
| Some morphological and physiological effects of palladium on Kentucky bluegrass | 
                               Benedict, W…  | 
                                                                                        1970 | 
| Lichens as Pollution Monitors | 
                               Hawksworth…  | 
                                                                                        1970 | 
| Mechanisms controlling world water chemistry | 
                               Gibbs, R.J…  | 
                                                                                        1970 | 
| Kiefernwaldbreitung und Schwefeldioxid-Immissionen im Ruhrgebiet | 
                               Knabe, W.…  | 
                                                                                        1970 | 
| Effect of palladium chloride on the growth of Poe pratensis | 
                               Sarwar, M…  | 
                                                                                        1970 | 
| Qualitative scale for estimating sulphur dioxoide in air pollution in England and Wales using epiphytic lichens | Hawksworth, D.… | 1970 | 
| Survival of fish in 164 herbicides, insecticides, fungicides, wetting agents and miscellaneous substances | 
                               Alabaster,…  | 
                                                                                        1969 | 
| The acute toxicity of some heavy metals to different species of aqautic insects | 
                               Warnick, S…  | 
                                                                                        1969 | 
| Fluoride criteria for vegetation reflect the diversity of the plant kingdom. In a Symposium: The technical significance of air quality standards. | 
                               McCune, D.C…  | 
                                                                                        1969 |