20 



P. T. CLEVE. 



scription, the formation may be of the same kind as the limestone formation at Brimstone 

 Hill in S:t Kitts. That fossiliferous deposit, as well as the regular stratification of the 

 tufa in the land around the cone, seem to prove that the lower part of the volcano is 

 formed by ftubmarine eruptions and that the island has been raised afterwards. In the 

 northern part of the island are several hills and rocks, all of volcanic origin. Some con- 

 sist of trachyte or old lava-currents, and others of trachytic tufas. They are evidently of 

 an older date than the Quill, as tufas from the latter cover some parts of the trachytic 

 rocks. No regular craters are visible in the northern part, pnly crests and hills, which 

 have probably been parts of volcanic cones or lava-currents, partially destroyed by denu- 

 dation. No fossils are found in that part of the island. 



g 



A 



L r < 



The volcano of S:t Eustatius seeu from the ceutre of the island. 



Sketch of S:t Eustatius from S:t Bartholomew. 



S:t Kitts or S:t Christopher, situated at 

 a distance of 12 kilom. S. E. of S:t Eu- 

 statius, is also a volcanic island of an 

 elongated form measuring from N. W. — 

 S. E. about 32 kil. Its greatest breadth 

 is about 10 kil. In the southeastern part 

 the land is very low, contains several la- 

 goons and has only insignificant trachytic 

 rocks, the fields being covered with a fer- 

 tile soil of dark gray volcanic ashes. 

 North-west of the capital of the island, 

 Basseterre, is a small hill, with the out- 

 line of a truncated cone, called Monkey 

 Hill, which has the appearance of a volcanic mountain, but I cannot tell if there is any crater as I 

 have not ascended to its summit. In the sugar-cane fields below Monkey Hill occur many 

 shells of fresh appearance and belonging to still living species, as Chama arcinella L. Pli- 

 catula ramosa Lamk Area antiquata Lin Area Noe Lin Mur ex pomiformis Mart Turbo Pica 



Map of S:t Eustatius. 



