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V.E. Neall, Department of Soil Science, Massey University, for the text
and a photograph, p.9.
Shell Oil New Zealand Limited, for generous financial help. Illustrations: D.S. Sinclair, p.lO.
National Publicity Studios, pp.5; 14.
Smithsonian Institute, nuees ardentes p.l2.
Geological Survey, D.S.I.R., cover; p.12.
Soil Bureau, D.S.I.R., umu p.ll.
National Park staff, pp.7; 11; 12.
Cartographic Branch, Department of Lands and Survey.