Fig. (a)—Generalised Geological Map of South-western New Zealand. Fig. (b)—Detailed map of the region between the Hollyford, Pyke, and Matukituki Rivers based on Sheet 28 of the official Four Mile Map (1938) supplemented by information derived from many sources. Heights shown are approximate only, and certain place-names are provisional and subject to the approval of the Honorary Geographical Board. Fig. (c)—Panorama looking S.W.-N.E. from East Peak Mount Earnslaw, drawn by Mr. E. Miller from photographs by Mr G. L. Edwards. Mount Cook, occasionally visible from this point, is 100 miles distant. To face page 24