Rob and Smiths Operative Surgery: Neurosurgery L. Symon D. G. T. Thomas K. Clarke (Eds)1989, 4th edn London, Butterworths 509 pp., fully illustrated,£150.00Myotonic Dystrophy Part of Major Problems in Neurology series Peter S. Harper, 1989, 2nd edn 375 pp., 50 figs,£40.00Human Neurophysiology–A Student Text Oliver Holmes London, Unwin Hyman Ltd, 1990 Hb£50.00, Pb£15.95