248 Proceedings of Societies. [June, 



V. — Proceedings of Societies. 



1. — Asiatic Society — Physical Class. 

 Wednesday, \3th June, 1831. 

 James Calder, Esq. in the chair. 

 The chairman communicated the offer of Dr. H. H. Spry of Sagar, 

 to correspond with the Physical Class, on Geological subjects, which was 

 accepted with thanks. 



Correspondence. 

 1. The following letter was read from Mr. J. D. C. Sowerby, acknow- 

 ledging the receipt of the Himalayan Fossil Shells sent to him for exami- 

 nation, at the suggestion of the Rev. R. Everest, in 1831. 



To James Frinsep, Esq. Sec. Ph. CI. As. Soc. 

 Sir, 

 I feel highly honoured by the resolution of the Physical Class of the Asiatic 

 Society, forwarded to me in your letter, dated the 26th of January, and request 

 you to present my thanks to the Society for the series of specimens which I have 

 lately received. 



I had before seen some specimens from the same mountains, in the possession 

 of Mr. Stokes and Dr. Buckland, among which were several ammonites that are 

 as yet unnamed. The Rev. Mr. Everest's deductions are correct, as far as they 

 relate to the formations the fossils belong to, as you will see by the accompa- 

 nying list of names, to each of which I have added the formation in which that 

 species occurs, in England. 



In the genus Terebratula, there are many species that cannot be depended upon 

 as indicating particular formations, because very similar ones are found in several 

 beds, and the species are difficult to determine, especially if not quite perfect. 

 You speak of aPecten, which Mr. Everest thinks does not differ from the common 

 Scallop, it is very probably P. cequivalvis, which is characteristic of the inferior 

 Oolite j both of its valves bear a strong resemblance to the convex valve of 

 Peeten maximus. The Helix you speak of may possibly be Ampullaria nobilis, 

 which accompanies the Cirrus in the lower beds of the mountain limestone of 

 England and Ireland. 



Allow me to repeat, that I am sensible of the honour conferred upon me by the 

 Asiatic Society, and shall always take a pleasure in replying to similar communi- 

 cations, or in being in any way serviceable to science. 



I remain, 

 5, Camden Terrace, "] Dear Sir, 



West Camden Town, > Your faithful servant, 



London, Oct. 14, 1831. J J. D. C. Sowerby. 



List of Fossil Shells, from the Himalaya. 

 Fig. 1. (See Gleanings III. Plate XVII.) Avicula (rather than Peeten), species 

 new. 



2. Spirifer striatus, [Min. Con. tab. eclxx.] Mountain Limestone. 

 ? Cast of the interior of Spirifer siriatus, Mountain Lime. 



3. Producta scabricula, [Min. Con. t. lxix. fig. 1.] 

 ■ , new species. 



