Research into the basic mechanisms of photosynthesis has a long and distinguished history and has consistently been at the forefront of science. The success of this research, particularly in recent years, suggests that photosynthesis may turn out to be the first complex biological system to have its structure, function, and regulation described in rigorous chemical terms at the atomic level. It is likely that such knowledge will help us to tackle perhaps the most vital problem facing mankind, namely our need for a continuous and nonpolluting source of energy. The benefit may come by providing...

The present volume "Excitation Energy and Electron Transfer in Pho* tosynthesis" is dedicated to a colleague and dear friend Warren L. But- ler. I first met Warren when he visited the University of Illinois at Ur- bana during the early sixties; he left an indelible impression on me as a person with warmth and enthusiasm. Initially, he was someone I looked to for guidance, but later we also became friends. Whenever I passed through Los Angeles, I always telephoned Warren and often end- ed up taking a plane to San Diego to stay with two wonderful people, Warren and his wife Lila. His...

The Expert Committee on Biomaterials and Biotechnology for the European and the North American Region was founded by the General Assembly of UNESCO at its 21st Session, in 1981. The Committee comprises a Coordinating Group and four working Groups, defined in the following scientific areas: Group I Proteins: source, structure and function. Group II Nucl ic acids: the hereditary materials. Group III Im une materials and mechanisms. Membranes and transport in biosystems. Group IV In fulfilment of one of the objectives of the Committee, which have been adopted by the General Assembly of UNESCO in...