Cockayne, The Vegetation of New Zealand. Plate VI, to page 75. 
Fig. ı1. Sand-worn stones where dunes are blown away. Here and there 
Coprosma acerosa. Egmont-Wanganui dis rict. 
Photo., L. Cockayne, 
Fig. 12. Tongue of sand in lee of Coprosma acerosa. Sand-hills blown 
away. Egmont-Wanganui district. 
Photo., L. Cockayne. 
