312 Wisconsin Academy of Sciences, Arts, and Letters. 



which had a grayish color similar to those found on the lower 

 parts of the most of the other islands. There were many speci- 

 mens of a low species of Opuntia. Lichens seemed to be abun- 

 dant on the vegetation. 



Gardner Island, Near Hood Island. 



This one of the Gardner Islands is situated about a mile off the 

 north shore of Hood Island. The water in Gardner Bay, be- 

 tween the two islands, is quite shallow, so it is likely that the 

 two islands have been connected at some past time. The island 

 is quite small, and is made up of very old lava, some of which 

 has broken down in places forming a light covering of soil mixed 

 with small lava fragments. The east and south sides are rather 

 flat and sand beaches occur along the shores on these sides. The 

 remainder of the island is rough, however, and the shores are 

 bordered by tall cliffs. A small bay is surrounded by these on 

 the north side. 



Low bushes of Cryptocarpus pja-if ormi occur in several places 

 near the shore. The only trees on the island are those of Bur- 

 sera graveolens and Opuntia galapageia. Bushes of Cordia 

 lutea, Lantana peduncularis, and Prosopis dulcis are quite com- 

 mon. 



Hood Island. 



Hood is the most southern island of the group, being located 

 five miles further south than Charles Island, thirty-six miles 

 west of it. It is also one of the smaller and lower of the islands 

 as its greater diameter is about eight miles and its highest point 

 has an elevation of 640 ft. So far as was observed, the shores 

 are high and rocky on all sides but the northeast where there are 

 long stretches of sand-beach and low rocky shore. The sides 

 slope up gradually from the shore at Gardner Bay, to a some- 

 what flat central region on which there are several rocky hills,, 

 some of which rise possibly a hundred feet above the surround- 

 ing country. There is no distinct crater on this island. There 

 is, however, a broad flat plain, about half a mile south of Gard- 

 ner Bay, which may be the floor of a crater, the surrounding 

 hills being all that is left of the rim. 



The highest point is towards the southwest side of the island, 

 and consist of a flat-topped hfll of lava. A considerable amount 



