724 Proceedings of the Asiatic Society, [June, 



Report of the Curator Museum of Economic Geology for May, 1847. 



I have been employed examining various matters in the departments 

 under my charge during the past month, but some are not completed 

 and others not worth reporting upon. 



Geology and Mineralogy. 



Dr. Spilsbury has sent us an additional supply of specimens of the 

 ferruginous spherules described in my report of Sept. 184G, as possibly 

 volcanic. I have put into a separate notice for the Journal the result 

 of my examination of one of them, which appears to me to demonstrate 

 that they have not been derived from organic bodies. 



Col. Ouseley has sent us a further and an abundant supply of the 

 remarkable fibrous limestone with impure chalk (for chalk it certainly 

 is if we use the name without reference to the organic contents of the 

 purer European chalks) described in my last, and both in a mineral and 

 a geological point of view, it is highly interesting ; the layer of matrix 

 is in some specimens fully half an inch thick ! 

 Economic Geology. 



Major Jenkins has sent us from Assam a curious kind of beads held 

 in much veneration by the Singphos. I have put it into the form of a 

 short paper for the Journal, the examination I was able to make of 

 the minute specimen we could afford to take, being about 1^ grain in 

 weight, so as to preserve for the Museum these singular specimens for 

 comparison. When we can obtain others a more complete analysis 

 may be made and the question settled of whether they are artificial or 

 natural productions. Dr. Spilsbury has sent us (Report of March, 

 1847) another, and this time a handsome specimen of the Copper Ore 

 of Sahgurh* which is really a very fine and promising one, being a pure 

 green and steel-grey oxide, probably a silico-carbonate of Copper dis- 

 persed in spots and masses through a quartz matrix with very little 

 iron and apparently no sulphur in combination. It is to be regretted 

 that such a promising ore is not wrought, but the expense of carriage 

 from such a spot would be a heavy charge even on the manufactured 

 produce. 



He sends also a bar of iron from Tendookhairie which, his note says 

 " cannot be wrought for the copper," but the obstacle is not copper, 



* From Sowrage, Sahgurh Raja's present capital, 9 miles north of Dhumonee, and 32 

 miles south of Tehree. 





