Fra. 18.—Wandering dune which has buried good agricultural land near Tura- 
kina (west coast of Wellington). (Photo, L. Cockayne. 
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Fria. 19.—Natural fore-dune with a very even surface held by the silvery sand- 
grass (Spinifex hirsutus), near Waikanae (west coast of Wellington). 
[Photo, W. H. Field. 
