38l 



Guppy Reprint 



133 



shells and pebbles are included in a calcareous paste or matrix 

 formed by the destruction of shells and other calcareous or- 

 ganisms. 



2. Specimens from Botanic Station. 



"This is an impure Limestone with small pebbles derived 

 from the older rocks of Tobago. It contains numerous shells 

 but not in recognizable condition. One Fossil however is with 

 little doubt, the Area patricia of the Haitian Deposits and this I 

 think fixes the age of the Stratum as miocene. The deposit was 

 a shallow- water one. 



3. Specimens from Mount Irvine. 



"The specimens are Limestone of a different kind to those 

 from the other localities — they have more of a stalagmitic 

 character. They have been picked up on the seashore as they have 

 recent marine organisms adhering to them. This Limestone was 

 probably deposited inside a coral reef or in the lagoon or space 

 between the reef and the shore. 



Conclusion. 



"The existence of miocene strata in the Island of Tobago is 

 indicated. More investigation would be required before a more 

 definite opinion could be given. Doubtless better specimens of 

 the Fossils will be forthcoming in time. The material from the 

 Botanic Station would be suitable for burning for lime and if in 

 sufficient quantity for the purpose it might be profitable. 



"On a short visit I paid to Tobago some years ago, I re- 

 marked that the Geology was of an interesting character and 

 highly deserving of investigation. I had however neither time 

 or means to investigate it." 



R. J. Lechmere Guppy. 



Glenside, Tunapuna, Trinidad, 

 29th July, 1 901. 



Note. — In No. 26 of Vol. V. Bulletiii, page 335 Mr. Guppy 

 kindly favored us with a preliminary Report. At page 362 there 

 is a further short note on a Fossil Oyster also found in Tobago. 

 -(Ed.) 



