254 MlDNAPOKEj OUISSA, &C, 



quartzites, with associated intrusive igneous rocks, trap and 

 syenite. 



2. Sandstones of the Kuttak or Atgurh field. 



3. Laterite. 



4. (a) Older alluvium. 



(b) Alluvium of the river Deltas. 



5. Blown sands. 



With the single exception of the small group of sandstone. rocks lying 

 south-west of the town of Kuttak, all the hills of the district included in 

 our map are composed of metamorpliic rocks, with associated igneous 

 intrusions. 



Metamoephic Rocks. — A reference to the map will shew that 



within the limits of the area included in it, the metamorpliic, or gneiss- 



ose rocks occur only in irregular patches along the western edge. In 



reality this area includes nothing more than a few of the more easterly, 



and projecting headlands of that great extent of 

 Great extent. . i i • i 



gneissose rocks, which cover such an immense 



space to the westward, stretching from the boundaries of Bancoorah> 

 Midnapore, and Orissa to Hazareebagh and Nagpore, and which form 

 the prevailing rocks over many thousand square miles, regarding even 

 the geography of which very little is known, and concerning the geo- 

 logical structure of which nothing has been ascertained, excepting in the 

 most cursory way. 



The detailed examination and description of these rocks naturally, 

 therefore, connects itself with that country, of the ancient shore of which 

 the little projecting promontories which occur within the area now 

 mapped only form the small headlands. 



It ^^ill, therefore, be both impracticable and useless to attempt any 

 thing more at present than briefly to indicate the general structure and 

 arrangement of these rocks, reserving any general considerations as to 

 their relation until that country to the west has been more fully examined. 



