Book review: Theoretical Aspects of Homogeneous Catalysis. Applications of ab initio Molecular Orbital Theory, Piet W. N. M. van Leeuwen, Keiji Morokuma and Joop H. van Lenthe (eds), Kluwer Academic Publishers, Dordrecht, Boston, London, 1995, 217 pages £70, ISBN 0–7923–3107–9