On the Analysis of Waters fi-om the Turko-Persian Frontier. 147 



in the valleys and on the hill-sides in Southern Euboea, Boeotia, 

 Samos, near Smyrna, and elsewhere in the Grecian Archipelago. 



In the present paper Captain Spratt described the occurrence 

 of similar deposits on the northern part of Eubcea, on the Locrian 

 coast, and around the Bay of Salonika. In connexion with the 

 similar strata in other localities, in and around the .^gean, for- 

 merly described, these apparently lacustrine deposits indicate the 

 existence of a great expanse of fresh water over the Levantine area 

 during some tertiary period, probably continuing, according to 

 Captain Spratt, from the eocene to the pliocene epoch. 



2. " On the Analysis of Waters from the Turko-Persian Frontier." 

 By Dr. T. Richardson and E. J. J. Browell, Esq. Communicated 

 by W. K. Loftus, Esq.. F.G.S. 



This was a report on six samples of water from the Lake of Van, 

 the small Lake of Ardchek situated to the east of the former, and 

 their vicinity, not far south-west of Ararat. They were brought home 

 by Mr. Kennet Loftus. Of these, four specimens (two from the 

 Lake of Van and two from Ardchek) belong to a veiy limited class 

 of waters, such as are found in Hungary and Egypt, and which are 

 more or less rich in carbonate of soda. A water from an acidulated 

 saline spring two miles south of Bitlis contained but traces of the 

 ordinary saline matter and a large proportion of lime and magnesia. 

 Hence it was inferred that probably this water originally caffe off a 

 dolomite, and subsequently passing through beds of gypsum, thereby 

 suffered a change in its constituents by a recombination among the 

 acids and bases. 



3. " Notice of an ice-carried Boulder at Borgholm." By John 

 Wolley, Esq. Communicated by Sir C. Lyell, V.P.G.S. 



This boulder was about 10 feet in length, 7 feet broad, and 6 

 feet deep, and had been carried by coast-ice from an islet about 

 half a mile distant, under the influence of a storm from the north, 

 which, by locally raising the level of the water, caused the ground- 

 ice to float with its entangled boulders and to convey them to a 

 distance. 



4. " Additional notice of the occurrence of Volcanic Bombs in 

 Australasia." By the Rev. W. B. Clarke, F.G.S. 



The author sent a notice last year of the occurrence of volcanic 

 bombs in the gold-bearing alluvium of New South Wales ; and in 

 this communication adds Victoria and Tasmania as countries in which 

 these obsidian bombs have been observed in the alluvial drift. 



5. " Notice of the occurrence of Metalliferous Ores in Siam." By 

 Messrs. H.J. Moyle and C. B. Hillicr. From the Foreign Office. 



This was a memorandum by Mr. Moyle (in a letter from Mr. 

 Consul Hillier) on the occurrence of copper-veins in grpuwackc, 

 and of ores of lead and silver, with magnetic and specular iron-ore, 

 in the hilly districts near the River Chaw-Phya (Meinam) in Siam. 

 A small box of ores, chiefly cujjriferous, with a specimen of corun- 

 dum, accompanied this communication. 



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