C.S. Adams, O. Carnal, and J. Mlynek, Atom Interferometry. R.Y. Chiao, P.G. Kwiat, and A.M. Steinberg, Optical Tests of Quantum Mechanics. D. Delande and A. Buchleitner, Classical and Quantum Chaos in Atomic Systems. T. Walker and P. Feng, Measurements of Collisions between Laser-Cooled Atoms. J.E. Lawler and D.A. Doughty, The Measurement and Analysis of Electric Fields in Glow Discharge Plasmas. N.A. Cherepkov, Polarization and Orientation Phenomena in Photoionization of Molecules. E.C. Montenegro, W.E. Meyerhof, and J.H. McGuire, Role of Two-Center Electron-Electron Interaction in Projectile Electron Excitation and Loss. D.L. Moores and K.J. Reed, Indirect Processes in ElectronImpact Ionization of Positive Ions. D.R. Bates, Dissociative Recombination: Crossing and Tunneling Modes. References. Subject Index. Contents of Volumes in This Serial.