difference in color of different samples of the bed, which 

 I had previously, noticed, was due merely to oxidation, the 

 portions of the bed near the surface being converted to a 

 reddish-brown color, while the inner parts were grey. This is 

 quite a common or rather almost universal change produced 

 by the access of air and Water. 



The quarry is situated on the side of a low hill, one of 

 the lateral spurs of the Montserrat range. It is in a cacao 

 wood and the neighbouring surfaces are covered with vegetation, 

 so that it could only be with axe, pick and spade that further 

 exploration could be made. I should think it likely that the 

 deposit would be found to extend to a considerable distance. 

 The material would be useful on a soil destitute of lime, but 

 the soils in the immediate neighbourhood are fairly supplied 

 with this substance. There are plenty of soils in the Couva 

 district and neighbouring parts which would be improved 

 by the addition of this fossiliferous rock. As a road material 

 it may serve in default of better, but it would not be of any 

 great durability, and could not stand heavy traffic. 



I endeavored without success to obtain some information 

 as to dip and strike and the relations of the bed to other beds 

 in the neighbourhood. There was a kind of false bedding which 

 obscured the real relations of the strata — but as no other 

 beds were visible above or below I could not ascertain any 

 other facts. Still in order to exhibit the relations of the strata 

 I subjoin a diagram which I hope will assist in making 

 the general relations clear. This shows that the Couva and 

 Montserrat miocene shell deposits were in course of formation 

 at the same time as the latter part of the oceanic deposits. The 

 subsequent folding dislocation and upheaval have altered the 

 apparent relations of the formations. Until we know the ground 

 better, and have detailed information as to the outcrop, &C, 

 of the geological formations we cannot give a more definite 

 Section than this approximate one, which is only diagrammatic. 



