314 Wisconsin Academy of Sciences, Arts, and Letters. 



around 600 ft. than lower down, as Polypodium squamatum 

 ^ows from the lava crevices at this elevation. There are also a 

 considerable number of small trees of Zauthoxylum Fagara in 

 this vicinity which is near the base of the high hill on the south- 

 west side of the island. The top of this hill is covered with 

 bushes of Cordia galapagensis, Cryptocarpus pyriformis, Ly- 

 cium geuiculatum, Tournefortia psilostachya, and Vallesia gla- 

 bra. Ipomoea Habeliana covers the rocks here to a considerable 

 extent. 



Indefatigable Island. 



Indefatigable is the second largest, and with the exception of 

 Duncan, is the most centrally located island in the group. It is 

 roughly circular in outline, and appears to have a large central 

 crater when seen from the south side. There is probably no 

 larger crater present, however, because in sailing around the is- 

 land towards the west side it is seen that the upper part is cov- 

 ered with many small craters, twenty-one of which were counted. 

 Small lateral craters also occur at various places along the sides, 

 the largest one of which is on the southeast side of the mountain 

 a short distance below the top. 



The shores along the south, southeast, and east sides of the is- 

 land are bordered by low rocky cliffs of lava in most places, 

 while on the other sides the shores are low with occasional sand 

 beaches. There is a large bay on the south side which we chris- 

 tened it Academy Bay in honor of the California Academy of 

 Sciences. 



The sides of the island slope up very gradually on all sides so 

 that it is necessary for one to travel several miles inland in order 

 to get into the region where collecting is good. All of the lower 

 parts are covered with the usual xerophytic forms so common on 

 these islands, but which are not in proper condition for collect- 

 ing through a greater part of the year. The lower parts are 

 covered with lava on which there is but little soil, but in the in- 

 terior there is an abundant soil, and in places there is said to be 

 water, although we were not fortunate enough to find it. The 

 interior of this island is very fertile, and with proper cultivation 

 is capable of supporting quite a large population, but up to the 

 time we visited it no attempt had been made to establish a 

 settlement there. 



We visited the island at Academy Bay, at two places on the 



