edited by Tensie Whelan ; foreword by Peter A.A. Berle. edited by David McFarland ; foreword by Niko Tinbergen. edited by Diana W. Freckman ; foreword by J.A. Wallwork. edited by Michael Allaby ; foreword by David Attenborough. edited by Leon Schiff ; with a foreword by Cecil J. Watson. edited by Malcolm Coppleson ; foreword by Howard Ulfelder. edited by Samuel Thurber ; foreword by Charles Swain Thomas. edited by Norman Jolliffe ; foreword by W. Henry Sebrell. edited by Margaret E. Dewar ; foreword by Harlan Cleveland. edited by Thomas G. Wadsworth ; foreword by S. Benjamin Fowler.