This is the third book chronicling the scientific activities of the European Society for Photobiology (ESP). It contains 56 chapters, written by authors from 16 countries, based on presentations at the 3rd Congress of the European Society for Photobiology held in Budapest, Hungary on the 27th August - 2nd September 1989. The science of photobiology, which can simply be defined as the study of the effects of light on living matter, covers so many subject areas that no single book can hope to do justice to them all. This multidisciplinary nature of photobiology is reflected by the material...