Chapter headings. List of contributors. Dedication and eulogy: Werner Lindinger 1944-2001. Preface (N.G. Adams, L.M. Babcock). Environmental, food and medical applications of proton-transfer-reactions mass spectrometry (PTR-MS) (W. Lindinger et al.). Hypervalent bonding in gas-phase anions (L.S. Sunderlin). Ion-molecule kinetics at high temperatures (300 - 1800K): derivation of internal energy dependencies (A.A. Viggiano, S. Williams). Flowing afterglow optical studies of electronic structures and reactions of small rare gas cluster ions (M. Tsuji). Merged beams studies of electron-molecular ion interactions in ion storage rings (M. Larsson). Neutral products from gas phase rearrangements of simple carbocations (T.H. Morton). Multipole-bound molecular anions (R.N. Compton, N.I Hammer). Index.