THE GRAND ERUPTION OF VESUVIUS IN igo6 649 



the stream were surrounded and remained standing. Farther 

 within the margin, however, where the developed stresses were 



Fig. 13. — View of the cone of Vesuvius on April 13, from the roof of a deserted 

 villa above Resina. The flat dome is in contrast w^ith the earlier pointed form. 



%'^' ■ , ^'^S^^^fe 



Fig. 14. — View of the surface of the western lava stream above Trecase, where 

 it has overrun a group of pines. (Taken on April 15.) 



