OLD BOGOSLOF 



2 99 



was lower than the one at the northwest end, and the lat- 

 ter was crowned by a high slender pinnacle. 



In 1891, the date of my first visit, Greenfield's pinnacle 

 had fallen, the top of the northwest peak had become a 

 huge bluntly-rounded pillar lower than the middle peak, 

 and the depression between the two had become a long, 

 deeply excavated saddle (fig. 6). Seen from a distance, 

 a sharp peak rose from this saddle (see photogravure at 

 beginning of article). 



In 1895, the date of Dall's second visit, the principal 

 peaks had undergone much additional weathering though 



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FIG. 7. OLD BOGOSLOF FROM THE EAST SPIT IN 1895. FROM PHOTOGRAPHS 



BY C. W. PURINGTON. 



the middle peak still remained highest, and the saddle be- 

 tween had changed in form, as shown in figure 7. 



The degradation of the peak and disintegration of the 

 ridge throughout its entire length have been materially 

 assisted by its extreme narrowness and sharpness. This 

 narrowness is well shown in one of Dall's sketches (fig. 

 8) which gives an end view of the island. In describing 

 it as it appeared in 1873, Dall says: "It formed a sharp 



