Transactions of the Royal Society of New Zealand

Volume 87, (Quarterly Issue) Parts 1 and 2. Issued July, 1959 Published by the Royal Society of New Zealand, Victopia University of Wellington, P. O. Box 196, Wellington, New Zealand Editor: J. T. Salmon, D.Sc., F.R.S.N.Z., F.R.E.S. Associate Editor: C. A. Cotton, D.Sc., Hon.LL.D., A.O.S.M., F.G.S., F.R.S N.Z. London Agent High Commissioner for New Zealand, 415 Strand, London, W. C.2. Printed by Otago Daily Times and Witness Newspapers Co., Ltd., Dunedin, New Zealand