238 Dr. Skey on the Geology of Barhadoes. 



mile in breadth, and terminated by a cliff of coral rock, varying in 

 elevation from twelve to more than twenty feet; sometimes indeed 

 having a considerably greater height. Although these terraces are 

 in general bounded by cliffs which run parallel to the line of the 

 coast, yet they are not wholly uninterrupted, for here and there 

 the high grounds advance towards the shore, and break their 

 continuity for a short space, where the terraced form of the land 

 is again taken up. 



The rocky boundaries to each terrace are formed by broken 

 pieces of madrepores of different species thrown about in great 

 confusion, held together by a calcareous cement of greater or less 

 hardness. Such are the madrepore with contiguous round cells. 

 No. 1. and the meandritical madrepore bored by mytuli. No. 2. 



Near the garrison of St. Ann's, and to the eastward of it, the 

 rocks bear the character of a dull compact chalky-looking limestone, 

 with ramose Alcyonia, No. 3, while considerably to the westward, 

 as in the parish of St. Peter's, the rock is more distinctly coralloidal ; 

 it contains also some natural caverns, from which very perfect 

 organic remains may de procured. 



In sinking a well at the Naval Hospital, a little to the north- 

 east of St. Ann's, the following specimens were met with in the 

 order in which they are enumerated, exhibiting in a striking 

 manner the increasing compactness of the rock, in proportion to 

 the pressure of the incumbent mass. 



1. A madrepore with contiguous round cells. 



2. A madrepore with detached round cells. 



3. A hard porous mass with terebratulites and lenticular con- 

 cretions, which are perhaps organic remains. 



4. A limestone analogous to the preceding but much harder. 



In no part of this district, including almost all the leeward or 



