1822.] Geological Society. 23T 



already mentioned, which, in its progress to the south, rises into 

 numerous summits of remarkable structure and appearance. 

 The upper part of the heights is generally perpendicular, with a 

 r-apid slope beneath ; and the faces of the hills which, in some 

 instances, rise to the height of 1500 feet, are divided by parallel 

 and horizontal beds of basalt alternating with amygdaloid, which 

 abounds in zeolite. In one place, about 15 or 16 such beds were 

 distinctly observable. 



A small hill near the bank of the Nurbuddah is crowned with 

 basaltic columns, and less distinct appearances of the same 

 kind were seen in other places. In one case, the basaltic rock 

 was traversed by a dyke of very compact texture, resembling 

 lydianstone. 



The immediate bed of the Nurbuddah consists of basalt, but 

 in the valley to the north of the river, a granitic compound^, 

 gneiss, and clay slate, were found in situ; the last in vertical 

 strata ranging about N W. and SE. 



The town of Baug, at a short distance from the river, is built 

 on horizontal beds of sandstone, and the route, for six or eight- 

 miles, was over rocks of the same kind, of various shades of 

 colour, red, yellow, and white, disposed in strata. In several of 

 the hills, abed of compact yellowish-grey hraestone, containing 

 caves, was observed above the sandstone, and immediately 

 beneath the soil, resembling the limestone of Neymutch, already 

 mentioned, about 140 miles to the north. 



The trap range, south of the Nurbuddah, is of bolder features, 

 but of the same materials and structure with that above 

 described. Similar rocks were found along the route through 

 the Candeish, a low tract surrounded on all sides by mountains ; 

 and the appearance and geological structure of the heights in all ' 

 the part of the country agree precisely with those of the ghauts 

 that bound the table land of the Peninsula to the westward, the 

 singular forms of which have frequently attracted the observation 

 of travellers. 



Feb. 1. — The Annual General Meeting was held, when the 

 following members were elected officers of the Society for the 

 ensuing year : 



President.— Wi\\iQ.m Babington, MD. FRS. 



Vice-' Presidents. — Rev. William Buckland, FRS. ; Williana 

 Haseldine Pepys, Esq. FRS. ; Henry Warburton, Esq. FRS. ; ^ 

 and William Hyde Wollaston, MD. FRS. 



Secretaries.— Willmm Henry Filton, MD. FRS.; and Mr. 

 Thomas Webster. 



Foreign Secretary. — Henry Heuland, Esq. 



Council. — Hon. Henry Grey Bennet, MP. FRS. ; Arthur 

 Aikin, Esq. FLS. ; John Bostock, MD. FRS. and FLS. ; Henry 

 James Brooke, Esq. FRS. and FLS. ; Daniel Moore, Esq. 

 FRAS. and FLS. ; George Bellas Greenough, Esqi FRS. and ' 

 FLS.; Major Thomas Colby, LLD. FRS. L. and E. ; Augustus 



