1856.] spratt — freshwater deposits of eub(ea, etc. 177 



December 17, 1856. 



R. E. Arden, Esq., and W. B. Webster, Esq., were elected Fellows. 



The following communications were read : — 



1. On the Freshwater Deposits of Eubcea, the Coast of 

 Greece, and Salonika. By Capt. T. A. B. Spratt, R.N., 

 F.R.S., F.G.S. 



In a paper recently sent to the Society, containing geological notes, 

 collected during the war, on the Bulgarian coast of the Black Sea, and 

 on the coast of the Sea of Marmora and the Dardanelles, I have re- 

 ferred to some extensive freshwater formations in Eubcea and on the 

 western coast of the Archipelago *, which I examined some years 

 ago, but the results of which examination were not communicated 

 to the Society. I have now put together my notes made when ex- 

 amining these several localities ; but not having the fossils before me, 

 this communication is necessarily imperfect. 



The fossils were deposited with my lamented friend E. Forbes, at 

 the Museum of Economic Geology, soon after they were collected ; 

 but as he had in view their publication in connexion with some con- 

 templated work of his own on the ^gean, the localities have re- 

 mained undescribed ; and, this object being now lost by the prema- 

 ture death of my deeply lamented companion and friend, the notes 

 are now drawn up, especially on account of their connexion with 

 the specimens from the eastern point of the Archipelago, and the 

 accompanying memoir, recently communicated to the Society. 



They are also connected with the notes on the freshwater de- 

 posits of the shores of the Smyrna Gulf, and the islands of Samos 

 and Euboea, already published in the Society's Journal f. 



In the Samian and also in the Eubcean and Boeotian deposits, 

 there were shown to be two distinct groups, unconformable. The 

 upper was described as a group of reddish marls, sands, and gravels, 

 overlying the white marls and compact white limestones, of un- 

 doubted freshwater origin, and supposed, from the type of the fossils, 

 to be of the Eocene age. 



With regard to the upper group, I never had any decided fossil 

 evidence to indicate its origin until 1846 and 1847, when I extended 

 my examinations into the northern channel of Euboea and coasts 

 adjacent. 



Euboean and Locrian Coasts. — My remarks on the geology of the 

 northern shores of the Euboean channel were published in the paper 



* Quart. Journ. Geol. Soc. No. 49. p. 80. 



t "Observations on the Geology of the Southern part of the Gulf of Smyrna," 

 &c., Quart. Journ. Geol, Soc. vol. i. p. 156 ; "Remarks on the Geology of the 

 Island of Samos," ibid. vol. iii. p. 65 ; aud " On the Geology of a part of Euboea 

 and Boeotia, " ibid. p. 67. 



