Pain pathways, F. Cervero and J.M.A. Laird; mechanisms of impulse block, B.G. Corvino; mechanisms of transmittor block, K. Budd and R.G. Hill; the effects of pain and its treatment, N.B. Scott; intrathecal and epidural drug spread, M.S. Brockway and J.A.W. Wildsmith; clinical use of spinal opioids, M. Morgan; management of continuous extradural block, A. Lee; thoracic nerve block, A. Mowbray; regional techniques for postoperative analgesia of the limbs, H.B.J. Fischer and B.E. Smith; principles of patient management, J.H. McClure.