Trans. N.Z. Inst., Vol. L. 



Plate XVI. 



Fig. 1. — View of the fluted limestone at Otaio Gorge. Almost the whole 

 thickness of the limestone is shown in the photograph. 



Fig. 2. — Solutioivpits in the limestone on Holme Station, seen from the 

 Gordon"s Valley -Little River Road. 



Face p- 350.] 



