Advances in laser spectroscopy. NATO Advanced Science Institutes series B, vol. 95 Edited by F. T. Arecchi, F. Strumia and H. Walther Plenum Press, New York and London (1983), 506 + ix p. $69.50.Laser applications in chemistry. NATO Advanced Science Institutes series B, vol. 105 Edited by K. L. Kompa and J. Wanner Plenum Press, New York and London (1984), 273 + ix pp.