ON THE GEOLOGY OF BARBADOS. 



199 



burgk's 



are by no means rare 

 in this material, as one 

 of us can testify from 

 ])crsonal experience. 

 The specimens shown 

 to Prof. Agassiz were 

 doubtless picked up on 

 the island, and pro- 

 bably that is all his 

 informant meant by 

 a-^suring him that 

 they occurred " in 

 place " *. 



As will be seen from 

 our sections, the basal 

 part of the island 

 everywhere consists 

 of stratified rocks, 

 chiefly dark sandy 

 clays and sandstones ; 

 for these we propose 

 to retain ^chom - 

 name of 



Scotland Rocks." 

 Overlying these and 

 resting unconform - 

 ably upon them is a 

 series of light-coloured 

 and chalky- looking 

 deposits, some of 

 which are calcareous 

 and others are mainly 

 siliceous ; they are all 

 of deep-sea origin, 

 and include the well- 

 known Infusorial or 

 liadiolarian earth. 



* There is a collection 

 of stones in Bridgetown 

 which is probablj that 

 8-en by Prof. Agassiz, 

 and it contains one piece 

 of trachyte ; this looks 

 like a piece of a large 

 pebble, and is labelled as 

 coming from Canefield, 

 an estate which one of 

 us carefully examined 

 without finding any rocks 

 differing from those seen 

 elsewhere. 



^ 



Sea, g 



o 



OQ 



Gully. 



Gully. 

 Lancaster. 



Endeavour, 



Gully. 



Hillaby 

 Mill. 



Mouat 

 ilUlaby. 



1\ 



The Vale 



Estate. 



Bissex Hill. 



I— • 

 CK5 



^ 



Co 



CO 



5j- 



Si- 

 's 



5> 





Oil-wells. ,_* 



O 

 o 



Bea. !2S 



