3 20 



MERRIAM 



with Cantwell's sketch ' A' (fig. 18) with which it should 

 be compared. The other (fig. 31) is from a point a little 



FIG. 31. THE ISLANDS FROM A LITTLE EAST OF NORTH, JUNE 30, 1897. 

 FROM PHOTOGRAPH BY STEJNEGER. 



east of north and should be compared with the photo- 

 gravure at the beginning of this article. 



The Harriman Expedition (1899) made no landing on 

 New Bogoslof, but, as shown by a photograph taken from 

 the boat by W. B. Devereux (fig. 32) the summit then 



FIG. 32. THE ISLANDS ON JULY 8, 1899, FROM THE EAST. NEW 

 BOGOSLOF ON THE RIGHT. FROM PHOTOGRAPH BY DEVEREUX. 



presented the flattened form mentioned by Becker in 1895, 

 and shown in Purington's and Stejneger's photographs. 



MATERIALS. 



Both islands are wholly volcanic and, according to 

 Becker, "seem to be composed entirely of hornblende-an- 

 desite, with some included fragments of diorite." Becker 

 (in 1895) was the first geologist to visit the islands, but pre- 



