In this volume 28 papers are presented. They cover all the fields studied with ion cyclotron resonance today, including reviews on important fields as well as short contributions on special topics. This report is devided into four parts: 1. Detailed studies on simple molecules, 2. Systematic studies of the ion chemistry, 3. Spectrometer development and 4. Theory. The plan to edit a progress report of the complete field was projected at the 2nd International Symposium on Ion Cyclotron Resonance Spectrometry, held at the Akademie der Wissenschaften und der Literatur, Mainz, March, 1981. Most of the contributions were written in late 1981 or in 1982. Hermann Hartmann Akademie der Wissenschaften und der Literatur Mainz Karl-Peter Wanczek Institut fUrphysikalische und theoretische Chemie Universitat, Frankfurt Acknowledgements The editors gratefully acknowledge support of the Symposium by the Stiftung Volkswagenwerk and the Fonds der Chemischen Industrie. The editors want to take the opportunity to thank H. Otten, President, Akademie der Wissenschaften und der Literatur, for the hospitality all the participants of the Symposium enjoyed. IV Delegates attending the 2nd International Symposium on Ion Cyclotron Reso- nance Spectrometry, Akademie der Wissenschaften und der Literatur, Mainz (numbers refer to the photograph) 26. D. Parent 1. M. B. Comisarow 2. 27. R. T. McIver, Jr.
