edited by J. Scott Keltie ; with the assistance of I. P. A. Renwick. edited by John Algeo, with the assistance of Adele S. Algeo. edited by S. D. Lee ; with the assistance of Bruce Peirano. edited by S. M. Nikol'skii ; with the assistance of E. A. Volkov. edited by D. W. Goodall, R. A. Perry, with the assistance of K. M. W. Howes. Edited by Pierre Dansereau, with the assistance of Virginia A. Weadock. edited by Dexter H. Howard ; with the assistance of Lois F. Howard. edited by R. W. Marsh, with the assistance of R. J. W. Byrde and D. Woodcock. edited by Annie M. Brewer, with the assistance of Marie Browne. edited by Eric F. Wood ; with the assistance of Andras Szollosi-Nagy.