220 Hanna — Notes on Pribilof Islands. 



and more recent than the St. George deposit mentioned 

 below. 



In addition to mollnsks and diatoms, a bryozoan was 

 f onnd in this deposit ; also the remains of several verte- 

 brates which were too incomplete for positive identifica- 

 tion. Among these were the task and a vertebra of a 

 walrns ; a vertebra and a carpal bone of probably a hair 

 seal ; some vertebra of a fish ; and some ribs. 



Zapadni Point, St. Paul Island. — The ontcrop here is 

 a bed of gravel about 25 feet thick lying beneath about 75 

 feet of lava. All form a perpendicular cliff. The gravel 

 is loose and at one point forms a slide. No fossils have 

 been found. 



This is the last of the known deposits on St. Paul Island 

 but the water line has not been examined from Southwest 

 Point to Northwest Point. That the sand rock comes 

 close to the surface near the head of the Salt Lagoon on 

 both sides is indicated by the springs of fresh water which 

 remain open through the winters. 



Tolstoi Point, St. George Island. — The sand rock here 

 is on top of about 100 feet or more of massive jasper and 

 in some places is composed almost entirely of fossil mol- 

 lusks. As stated before there has been a beach here at 

 one time. The cliffs are almost 300 feet high and provide 

 nesting sites for many thousands of water birds in the 

 summer time. The sand rock is coarse-grained and 

 varies in hardness in different places. It contains, 

 besides mollnsks, pebbles and bowlders, and several frag- 

 mentary bones (probably fish) were found. No diatoms 

 however have thus far been seen from it. Numerous 

 large springs flow down the cliffs from the ledge. 



The collection of mollusks made here has been exam- 

 ined by Dall with those from St. Paul Island and he states 

 that they indicate the St. George strata are the older. 

 They seem to be Pliocene. 



Sea Lion Rookery, St. George Island. — The old beach 

 line again outcrops here and is found on top of the jasper 

 about 50 feet above the sea. It is composed largely of 

 rounded bowlders of large size, and there are several 

 springs of excellent water flowing from it. 



Garden Cove, St. George Island. — Here the formation 

 is similar to that of Tolstoi Point just considered, except 

 that no fossils but diatoms have been found in the sand 

 rock. (Careful search, however, has not been made.) A 



