C—l3

No. 18. Sand-drift from shore killing grass in dune-hollow. " In centre and to right Mariscus undulatus.

No. 20. Wandering dune in process of formation. In centre wrecks of Scirpus frondosus dunes.

No. 17. Advance of wandering dune stopped by River Turakina. Wellfixed PORTION OF DUNE ABOVE.

No. 19. General view of wandering dune, formerly good grazing-land. showing ridge at summit of sand-fall.

Face p. 1°2.~\

[Photos L. Cockayne.