The idea of an "Advanced Study Institute" on the theme of electrode reactions on solid electrolytes was put forward by Dr. J. Dupuy at the meeting of the International Society for Electrochemistry in Eindhoven in September 1973. Through Dr. Dupuy, the Solid State Physics Department of Lyons University offered the Institute possibilities of accommodation in Corsica that seemed particularly tempting. The subject matter appealed to a number of people for a variety of reasons. A great deal of development work on applications comes up against interface phenomena which appreciably reduce...