edited by Milton J. Wolfson ; foreword by Herbert Lindenberger. edited by Malcolm Coppleson ; foreword by Howard Ulfelder. edited by Barbara F. Weller ; foreword by Robert J. Pratt. edited by David McFarland ; foreword by Niko Tinbergen. edited by Edward J. Lopez ; foreword by Robert D. Tollison. edited by Susan Gray; foreword by Paul Goldberger. edited by Thomas G. Wadsworth ; foreword by S. Benjamin Fowler. edited by Michael Allaby ; foreword by David Attenborough. edited by Milton Aronson and Robert C. Nelson.