edited by R.G. Hill, H.P. Rang ; foreword by Patrick Vallance. edited by Jill S. Baron ; foreword by Paul R. Ehrlich. edited by Bill Tonelli ; foreword by Nick Tosches. edited by A. S. Bhalla ; foreword by Jan de Koning. edited by Diana W. Freckman ; foreword by J.A. Wallwork. edited by J. Parker Huber ; foreword by Edward Hoagland. edited by Margaret E. Dewar ; foreword by Harlan Cleveland.