Q 4

Erosion on a Mountain-side destitute of Trees.

Fan of debris in foreground. Note how the dark patches of scrub protect the surface. [L. Cockayne, photo.

Junction Hill, Valley of River Poulter, Waimakariri National Park.

Densely covered with beech forest. The mountain-slopes, although very steep, are quite protected. Face p. 88.~\ [L. Cochayne, photo.