1850.] Proceedings of the Asiatic Society. 565 



Captain Wallage, Labuan Coal, &c. 

 Captain Brooke, Zinc from Rajpootana. 



Messrs. Duncan and Sweetland, Rajmehal Geological Specimens. 

 Captain Campbell, Bundlecund, ditto ditto. 

 Mr. Theobald, Junr., Survey (Rocks) from the Burdwan district. 

 Drs. Campbell and Hooker from Bootan, Geological Specimens. 

 Mr. Homfray, Ball Coal. 

 Mr. Theobald, Junr. ditto. 

 Mr. Torrens, Iron from Beerbhoom. 

 Rev. Mr. Thomas from Ava, Bezuar Stone. 

 Lieut. Fell, I. N. from Diamond Island, Coal Lignite and Rocks. 

 List of Papers for the Journal published and unpublished. 

 On yellow earth from Sikkim. 



— Calderite. 



— Ball Coal. 



— Ditto ditto. 



— Haughtonite. 



— Drs. Campbell and Hooker's specimens from Sikkim. 



■ — Catalogue of presentations to the Museum from 1814 to 1850. 

 A Preliminary Report to government on the Deoghur Copper ores. 



H. PlDDINGTON, 



Curator, Museum, Economic Geology. 



Ordered — that the report be received and laid on the table. 



Mr. Piddington, by special permission from the Deputy Governor, 

 as he said, read to the meeting a service letter in which he had com- 

 municated to the Government, the discovery of silver ores in the rub- 

 bish of the Deoghur copper mines. The ores are known to Peruvian 

 miners under the name of Pacozi, and though they contain silver in 

 such appreciable portions that it is only extractable to profit by the 

 curious Spanish process of amalgamation as carried on in those coun- 

 tries, yet they form the staple of the richest Mexican mines from their 

 vast abundance. 



Specimens of the ore, and of those from Mexico and Peru, as well 

 as of the silver extracted from Indian specimens were shewn, and Mr. 

 P. added that though the season had prevented his obtaining from 

 Captain Sherwill more than a small additional supply, he had been 

 able to obtain a good average produce from mere surface specimens. 



Dr. Roer, Secretary Oriental Section, submitted a letter on the part 



4 D 



