NO. 2 FRASER : SCIENTIFIC WORK, VELERO III, EASTERN PACIFIC 219 



the island, Y 2 mile wide at the entrance, but 1% miles wide farther in 

 and nearly circular, with the water deepening rapidly from all the shore 

 and becoming very deep. Most of the shore is rocky, but there is a beach 

 on the north side of the bay. There are a small pond near the beach and a 

 much larger one, apparently filling, or partly filling, an old crater, about 

 a mile north of the north shore of the bay. 



There are shore stations on the rocks, in the sand, at the shore lagoon 

 and the crater lagoon, several for collecting coral masses, for diving, and 

 for dipping under the electric light; and there are dredging stations in 

 sand, rock, and coral, from 5 to 70 fathoms. 



In 1933 the Velero III rediscovered the Galapagos Fur Seal at 

 Tower Island. Sea lions are common here as well as at many of the other 

 islands. 



Narborough Island really belongs to the southern crescent; but, as 

 it faces the concavity of Albemarle and is but 3 miles from it in the north- 

 ern portion, it may well be taken here. It is almost the same in length and 

 breadth, 16 or 17 miles, and it has but one large volcanic cone, 4,320 feet, 

 not far from the center of the island. The slopes are quite steep in the 

 upper portion, but more gradual in the portion toward the sea, so that a 

 large part of the island is comparatively low. There has been violent ac- 

 tivity on this island more recently than on any of the others, as recently 

 as 1926. The lava flows to the east, southeast, and south of the main cone 

 seem so fresh that they might have just cooled. 



There are numerous indentations along the northeast shore of the 

 island, almost, or entirely, shut off to form salt-water lagoons, some of 

 which are much filled with mangroves. Sea lions and turtles are partial to 

 these lagoons. The marine iguanas are numerous along this shore. The 

 shore and land birds are plentiful but are not different from those on the 

 other islands. One shore station is made to include collecting along the 

 ragged rocks, in the tide pools, in the lagoons, and among the mangroves. 



Albemarle Island is the largest in the archipelago, and in some re- 

 spects the most interesting. It is shaped somewhat like a sock, with the 

 foot a little broader than the leg. While the greatest length from north 

 to south is about 75 miles, the leg, measured from the top to the heel, 

 northwest to southeast, is 65 miles ; and the foot, from the heel to the toe, 

 northeast to southwest, is 45 miles. The greatest width of the leg is 18 

 miles, and of the foot 22 miles. Where the leg joins the foot, there is a 

 strong constriction, Perry Isthmus, to a width of 5 miles, from Elizabeth 

 Bay on the west coast to Cartago Bay on the east coast. 



