188 MESSRS. J. B. HARRISON & A. J. JUKES-BROWNE [May 1 899, 



has already been expressed. Now, although no conclusion can be 

 drawn from the juxtaposition of the beds seen in the cliff-section, 

 yet the road above it passes in places through Glohirjerina-msiTls, 

 suggesting the idea that patches of such marl overlie the San 

 Fernando Beds un conformably. Moreover, Mr. Guppy's description 

 of what is presumably the lowest part of the San Pernando Beds, 

 namely, his group 3, would apply equally to the l!s'ariva Beds of 

 the inland valleys. 



Seeing, therefore, that both the Nariva Series and the San 

 Pernando Beds are shallow-water deposits of like character, and 

 that they appear to occupy the same position with respect to the 

 Oceanic Series, there is a reasonable presumption that they are 

 closely connected in age, and form parts of one continuous series of 

 beds. Thus, if the San Fernando Beds are of Oligocene age, it is 

 possible that the Nariva Beds are of Eocene date. As to the beds 

 exposed in the cliffs near Taruba Creek, I have not seen them and can 

 express no opinion. If they are faulted down, as represented by 

 Mr. Guppy, their age can only be guessed at from their resemblances 

 to some one of the other formations. 



Kegarded in combination, the JSTariva-Fernando Series offers many 

 points of resemblance to the Scotland Beds of Barbados, not only in 

 lithological characters, but in fossil contents. Now, just as the 

 Nucula-heds are apparently the highest part of the Trinidad Series, 

 so also the fossils from which the Oligocene age of the Scotland 

 Beds has been inferred all come from beds which are relatively high 

 in the series. Hence, it is quite possible that the lower portions of 

 the Scotland Beds are of Eocene age. 



In conclusion, I venture to propose the following correlation of 

 the several rock-groups which have been discussed : — 



Barbados. 



Coral-rocks. 

 Bissex Beds. 

 Oceanic Beds. 



Scotland Beds. /yPPe^' 



Trinidad. 



Moruga Series. 

 Naparima Marls. 



San Fernando Beds. 

 Nariva Series. 



Pleistocene & 



Pliocene. 

 Miocene. 



Oligocene & 

 Eocene. 



Discussion. 



Dr. Gregory expressed his pleasure at hearing the Secretary say 

 that the paper was long, as a detailed account of these Trinidad 

 oozes would be most useful. He had described samples of the 

 three principal members of the deep-sea series in an appendix to 

 Mr. Guppy's last paper, and was glad to find the results confirmed. 

 In the discussion on that paper he had objected to the reference of 

 the oozes to the Eocene or Oligocene, and of any part of the series 

 to the Cretaceous. He thought that the correlation adopted in the 

 present paper would meet with universal approval. As coccospheres 

 had been found by Mr. G. Murray, on the recent expedition of the 



