MUSEUM OF COMPARATIVE ZOOLOGY. 



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a mile wide, and about forty feet high, with a sloping shore on one side. 

 It is a part of a cone which has been broken off on three sides, and the 

 other part submerged. This is called Otter Island, and has on it a 

 small fur seal rookery, yielding three thousand skins annually. 



Mosrovia, or Walrus Island. — East-southeast from the east end of 

 St. Paul's Island, eight miles distant, is a rock rising on all sides to a 

 height of thirty-five feet, half a mile long by one eighth wide. It has 

 around its base at the water line several ledges or shelves, on which the 

 walruses come to lie after feeding on the banks east of the island. 

 These animals frequent the island during the summer in large num- 

 bers, and are killed by the natives for their ivory. On the island is 

 also a small sea lion rookery. It is also the breeding-place of immense 

 flocks of sea-fowl, and the natives of St. Paul hence visit it in the lay- 

 ing season for the purpose of obtaining eggs. 



St. George's Island. — This island lies forty miles to the southeast 

 of St. Paul's, and is nearly triangular in form (Fig. 6) ; its greatest 



Fig. 6. 



Diagram of St. George's Island : a, principal seal rookery ; 6, harbor and settlement. 



length is twelve miles in an east and west direction. The greatest 

 width of the island, which is near its centre, is four miles. Its north- 

 ern shore has an indentation near its centre of three fourths of a 

 mile in depth, with a bank in front. Within this cove vessels may 

 anchor in ten fathoms of water, one half a mile off shore. It is at this 

 point that the settlement is situated. The southeast and southwest 

 sides are very irregular, with indentations on each side where vessels 

 may anchor in from ten to sixteen fathoms, one fourth of a mile from 



