m 



SKETCH OF THE 



been pointed out, and my observations are confined to that part of it 

 which lies east of the central range. 



With regard to the central range itself, in the neighbourhood of Udajja- 

 pur, it is formed of the distinctly stratified quartz rock described in page 62, 

 — which alternates with argillaceous schists, &c. and exhibits sharp and 

 denticulated ridges, peaks, &c. As we proceed north, the granitic rocks 

 make their appearance with their associated gneisses, micaceous schists, 

 and hornblende rocks. These are found at no great distance to the north 

 of Uclayopur, and on the most northern portions of Mewar, in the Ajmer 

 district, and where this range borders on 3Iarwar, they are the only rocks 

 met with. From the large plates of mica, which are brought from the 

 latter portion of the district, we may judge of the nature of the rocks of 

 this range to the north. 



The country lying betwixt this range and the belt of secondary rocks, 

 which form the Chitor range, and from thence extend west for a short 

 distance, is generally level, and from its surface rise several detached hills 

 and hill ranges. The nature of the rocks in this portion of the country will 

 be understood from the accompanying section of the strata which occur on 

 the route from Nimach to Mertah, which last is situated about a mile 

 and a half from the base of the central range. These rocks cross the 

 country in an oblique direction, the strata running nearly from N. W. 

 to S. E. 



Proceeding north from Mertah, we have a continuation of the rocks 

 described in the explanation of the section as occurring at and near Mer- 

 tah. In these, the associated felspar is frequently ^ra;^/^;-, and the last 

 sometimes occurs nearly pure, in which case it forms the ivhite stone of 

 Werner. This, however, is rare. Beds of semi-transparent quartz also 



