Scien t ifio In Ulltgen cc. 



[NO. 4, NEW SERIES, 



" From a few samples I have seen of various stones said to have been 

 brought from the Oodaghcrry Talook ; and from the report of Natives, 1 

 should consider that the country in that direction was far superior to the 

 country about here, in a geological point of view. Some of the stones 

 which are s;::d to come from Oodaghcrry, certainly look very like ordi- 

 nary mountain lime : but as I am at present without any of the various 

 chemicals requisite for proving limestone, 1 am unable to speak positively 

 on the point. 



* • * Upon showing a small piece of " Blue Mountain limestone," 

 which I generally carry about in my pocket, to a Native while out ex* 

 ploring about nine miles West of the town he informed me, that he had 

 seen stone of the same u caste," either in the hills between Dootaloor and 

 Oodaghcrry or in the mountains, West of latter town ; and that it was ge- 

 nerally used for making images, and pillars of small temples." 



We have much pleasure in subjoining the following Report by 

 Mr. Wall, the Mineral Viewer, upon the several specimens forward- 

 ed by Mr. Powell. 



The minerals are chiefly of volcanic origin, consisting of specimens of 

 chrystallized schorl and mica ; there are also several pieces of sedimenta- 

 ry rocks, micaceous sandstones and cherts, ferruginous sandstone, two or 

 three pieces of chert, probably silicified wood, and samples of nodular 

 limestone or kunkur. 



The series indicate a volcanic district with sedimentary deposits, the de- 

 bris of those in the neighbourhood ; none are at all connected with the oc- 

 currence of coal. The black substance looked upon by Mr. Powell as coal 

 is schorl, this substance is readily distinguished from coal by its non-com- 

 bustible properties. 



Besides the minerals enumerated above there is a combustible substance 

 amongst them, asphaltum, this differs much in appearance from coal and 

 when heat is applied to it, it will be found to melt very readily. 



The following is a list of the minerals forwarded : — 



Volcanic Rocks. 

 Chrystallized schorl. 



Do. mica black and white. 

 Schorl and mica imbedded in compact quartz. 

 Granular quartz. 



Varieties of granite in a state of decomposition. 

 Kaolin or decomposed felspar. 



