136 GEOLOGICAL FEATURE. 



the coast is, however, very limited ; and, un- 

 fortunately, there were no observations made as 

 to the order in which the varieties occurred. 

 It may, nevertheless, be interesting to the geolo- 

 gists to be informed of the nature of the rocks 

 which composed the several islands, and some 

 of the mountain ridges on this part of the coast, 

 especially as there have been so few oppor- 

 tunities of examining them, and as it is an 

 intermediate station between the places visited 

 by Mr. Scoresby and Sir Edward Parry. At the 

 northern entrance of Magdalena Bay, the termi- 

 nation of one of those remarkable ridges which 

 branch off from the large chain traversing the 

 island throughout in a north and south direc- 

 tion, our specimens consisted of granite, with 

 predominant white felspar, mica slate, and gneiss 

 with black mica. Those of Dane's Island were 

 mica slate and gneiss, passing into perfect gra- 

 nite, with black mica, and specimens intermedi- 

 ate between these two, together with some quartz. 

 There were also found here two specimens of 

 coal (probably alluvial), the one glance coal, the 

 other a slatz variety. On the eastern side of 

 South Gat, which separates Dane's Island from 

 the main land, we found mica slate and gneiss, 

 of the same varieties as at Dane's Island. Upon 

 Amsterdam Island, as already stated, Vogel Sang 



