308 Wisconsin Academy of Sciences, Arts, and Letters. 



Culpepper Island. 



Culpepper is located farther north than any other island in 

 the group, and it is also one of the smaller of the islands. De- 

 posits of basaltic lava, and tufa make up the island and form 

 perpendicular cliffs alonji^ its sides. The cliffs descend directly 

 into the sea and render landing impossible except at one place on 

 the north side where they have become broken down and formed 

 a large mass of talus. A gently rounded plateau covers the un- 

 per part of the island and has an elevation of several hundred 

 feet. This plateau is inaccessible but is heavily covered with 

 vegetation, which appeared from the vessel to be composed 

 mostly of Bursera trees and Croton bushes. In addition to the 

 above, there are a considerable number of small bushes, very 

 similar in size and appearance to Sealesia Snodgrassii, which oc- 

 curs on Wenman Island about twenty miles to the southeast. 

 Thickets of a species of low Opuntia also occur here. On the 

 talus slope, near the landing place on the north side, a few 

 bushes, of Croton Scouleri var. brevifolius, and Telanthera 

 Helleri occur. Bright red patches of vegetation were seen at 

 various places along the sides of the cliffs a short distance above 

 the water. These are probably composed of Sesuvium Edmon- 

 stonei as it forms similar patches elsewhere. One member of the 

 party reported having seen the remains of sedges, the first time 

 that these plants have been reported from this island. 



Daphne Island. 



Daphne Island is a small tufa crater, about half a mile in di- 

 ameter, and 200 ft. high, which is located five miles north of In- 

 defatigable Island. The sides of the island are steep, and with 

 the exception of a few small trees of Bursera graveolens, there is 

 but very little vegetation on them. The only plants collected 

 here were : Abutilon crispum. Euphorbia amplexicaule, and Tri- 

 bulus cistoides, all of which were taken by Mr. F, X. Williams 

 from the inside of the crater. 



Duncan Island. 



Duncan is a small island, about three miles in diameter, which 

 lies between Albemarle and Indefatigable Islands. The shores 

 are steep and are made up of tall cliffs on all sides but the north 



