June, 1842.] Proceedings of the Asiatic Society. lxiii 



The Secretary was desired to write to the author, expressing in t\i^ 

 name of the Society its high approbation of the work, and especially as 

 regards the introduction of the Copernican system into it. 



Report of the Curator Museum of Economic Geology, and Geological and 



MlNERALOGICAL DEPARTMENTS, FOR THE MONTH OF May. 



Geological and Miner alogical. 



Lieutenant Sherwill, whose beautiful Geological map and collection of specimens of 

 Zillah Behar was brought before the Society in January has at my request, added to it. 

 — I may say he has doubled its value — by giving us first a note of the heights of forty-two 

 points measured or estimated, and then a general geological memorandum of the district. 

 He has further, and this is not mere ornament, added to the map a set of vignettes most 

 capitally executed, and admirably chosen to convey a faithful idea of that district. 



From the whole we shall, I doubt not, be able to give as good a preliminary geo- 

 logical idea of the district as can be desired, or indeed expected, for nothing short of a 

 geological survey can of course produce a correct one. 



We have also received Captain Phayre's sketch map to accompany the series of speci- 

 mens from Sandoway to the top of the Yoma mountains exhibited at the last meeting. 

 The map had been left on board the H. C. S. Amherst. 



Lieutenant Strover has forwarded to us, at the request of Captain Abbott, some speci- 

 mens illustrative of his paper on the occurrence of granite in the bed of the Nerbudda. 

 Lieutenant Strover says, 



My dear Sir, — In a letter I received from Captain Abbott, he mentions that some 

 specimens of trap blended with granite found in the bed of the Nerbudda here would be 

 acceptable to the Society. I therefore, without delay, despatch them by Banghy Dawk 

 franked by the political officer here ; I have sent five different packets, viz., 1st the trap, 

 2nd granite, 3rd the granite and trap where the former preponderates, 4th where the lat- 

 ter is in excess, 5th indistinct blending of the two. Should the society require other speci- 

 mens or layer, I shall be happy to meet with their wishes. 



Museum of Economic Geology. 



We have received from Captain Ousely a good supply of the Agalmatolite which as 

 mentioned in my last report, we had recognised Major Williams' Samy stone to be ; and 

 some of it really proves to be a very fine variety, almost approaching the Pagodite. 



A box of 8 or 10 lbs. weight has been sent, in the name of the Society, to Major 

 Williams' brother, with a request that he would inform us of the success of it as a polish- 

 ing material, for which, and as an anti-attrition one also, it seems admirably adapted. 



I shall also endeavour to have trials made of it soon ; the different varieties we have 

 received, I have distinguished as follows in our collection and to Mr. Williams : 



A. Large block, light greenish-white fracture, talcky in some parts; the weathered 

 surface yellowish. 



B. Sawn piece ; whitish, slaty grey where cut ; on the fractured surface green, grain 

 finer and even. 



C. Thinly laminated, and contorted. Impure between the laminations. 



