c.—6.

Fig. 1. —The north-western face of Rainbow Mountain, showing the bare coloured ground from which the mountain has received its English name.

[Photo W. Boardman.

Fig. 2. —The south-western slopes of Rainbow Mountain, for the greater part clothed with aborescent vegetation. In foreground, on left, the warm crater-lake.

FUce page #.]

[Photo W. Boardman,