Trans. N.Z. Inst., Vol. XLVIII 



Plate V. 



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[C. -i. Cotton, photo. 

 Fig. 1. — The scarp of the Slate Range. View looking north-north-west. 



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[C. A. Cotton, phoio. 



Fig. 2. — The gorge of the Blue Duck Creek, incised below the plateau surface 



of the Gouland Downs. 



