﻿Quart. Journ. Geol. Soc. Vol. LXVI, Pl. XLIX. 



Fig. 1. 

 lava with subsidences and a tunnel. 



T. A.. Phoiogr. 



Fig. 2. 



THE TOWER OF THE CHURCH OF SATAPUTU IN A DEPRESSION IN THE LAVA-FIELD. 



