300 Wisconsin Academy of Sciences, Arts, and Letters. 



maritima, Lyciuin sp., Scaevola Plumieri, Sesuviuin Edmon- 

 stoiici, and S. portulacastrum grow quite commonly, while at the 

 west end of the bay there is a small swamp of Rhizophora 

 Man{?le. A short distance back of the bay there is a small lake, 

 the water in which has become saturated with salt and a layer 

 has crystalized out which is thick enough in places to support 

 one's weight. A number of trees of Avicennia officinalis grow 

 in the water on the edge of this lake. There is a heavy growth 

 of pneumatophores and mats of Sesuvium Edmonstonei in the 

 water beneath these trees. There are some exposures of lava 

 in this vicinity on which there is little vegetation besides Cacti 

 and a few bushes. Around the base of a small crater, near the 

 east end of the bay, there are bushes of Acacia macracantha, Cor- 

 dia lutea, Cryptocarpus pyriformis, and Scalesia villosa. There 

 is another small crater, about a half mile inland, the sides of 

 which seemed to be covered with Bursera trees and Croton 

 bushes. 



Post-Office Baxj. 



Post Office Bay lies about two miles west of Cormorant Bay, 

 just mentioned. This bay derives its name from the fact that 

 the British Warship Leander placed a barrel on a post there 

 many years ago, in which vessels which visited this place could 

 deposit letters. The next vessel that called was supposed to 

 take them out and carry them to their next port of call. Sever- 

 al of the members of the party, including the writer, mailed let- 

 ters here which reached their destination some eighteen months 

 later. 



The interior region, on the north side of the island, was visited 

 from this place, and was found to be much rougher than was the 

 region near Black Beach Road on the west side of the island. 

 There are several small craters on this part, the highest on? vis- 

 ited having an elevation of 700 ft. There are broad valleys be- 

 tween the craters in some of which there were low rocky areas 

 which might have contained water at some time as there were 

 rounded boulders in them which had the appearance of having 

 been water- worn. 



The coast, along the south side of the bay, is rocky with occa- 

 sional sand beaches on which there are a few patches of Rhizo- 

 phora Mangle, and trees of Avicennia officinalis. This, by the 

 way, is the only place on the islands where Avicennia grows sa 



