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

 Fig. 1. 



ILAGGY LAVA (PAHOEHOE). SHOWING CORDED STRUCTURE. 



T. A., Photogr. 



Fig. 2. 



LAVA-F.ELD WITH BLOCKS BROKEN UP BY INTRUSION OF LAVA. FUMAROLES ARE 

 SEEN ON THE LINE OF THE PRESENT UNDERGROUND FLOW. 



T. A., Photogt 



Bern rose Ltd., Collo., Derby. 



