Trans. N.Z. Inst., Vol. XLIX. 



Plate XXVI. 



Fig. 1. — Akaroa Harbour from summit of Mount Bossu, looking north, showing stream- 

 eroded valleys in interior of the caldera. 





' 







Fig. 2. — Akaroa Harbour from summit of western side of the crater-ring, the stream- 

 eroded slopes of Barry's Bay valley in the foreground, and the entrance 

 to the harbour in the distance. 



