90 



BULLETIN OF THE 

 Fig. 6. 



Diagram of St. Paul's Island : a, harbor and native village ; b, sea-lion rookery 



a point one third its length from the west end. From this point a nar- 

 row peninsula, half a mile wide and two and a half miles long, extends 

 in a southwest direction from the main island. The island is of vol- 

 canic origin, and consists of a cluster of flattened cones. The central 

 cones of the island have an elevation of from two to three hundred 

 feet, and a diameter of from half a mile to one mile and a half. Those 

 on the outside, which form the shore line, are much smaller, they being 

 only from one eighth to half a mile in diameter, and from fifty to sixty 

 feet in height. Their bases touch those of the central higher cones. 

 Between the chains of cones are narrow valleys, raised but little above 

 the sea level. The border cones are composed entirely of clinkstone, 

 and their surfaces appear to have undergone no change other than that 

 resulting from the original Assuring, and the subsequent action of frost. 

 Where these cones extend into the water they form rounded points 

 with gently sloping shores. There is a belt of loose rocks, varying 

 from five to forty rods in width, between the base of the outer cones 

 and the water. The coves formed between these points have shores 

 of loose lava sand. 



The peninsula is formed by two of these cones, one of which is one 

 half and the other two and a half miles distant from the main island, 

 with which they have been recently connected by the deposition of 

 loose sand thrown up by the action of the waves. The connecting 



