THE DAMUDA SERIES. 41 



West of the Jai;jarh4 river some good coal occurs^ dipping west- 

 south-west at an angle of 11°. The section in ascending order is — 



1. Coal partially seen. 



2. Carbonaceous shale ... ... ... 1' 9" 



3. CoaZ seam ... ... ... ... 15' 0" 



a. — Coal, middling quality ... 6' 6" 



h. — Black carbonaceous shale ... 1' 0" 



c. — Coal, good ... ... re" 



d. — Sandy carbonaceous sbale ... 3' 0" 



e- — Goal, inferior ... ... 3' 0" 



4. Beds obscure (about) ... ... ... 18' 0" 



5. Coaly sbale ... ... ... 5' 0" 



6. Carbonaceous sbale, concretionary ... ..^.. 5' 0" 



7. Coaly sbale ... ... ... ... 3' 0" ^ 



8. Carbonaceous sbale .... ... ... 2' 0" 



9. Sandstone, a few feet 

 10. Coal, small tbickness. 



These coal seams are cut off on the south by a large trap dyke^ but 

 their continuation is uninterrupted on the north and their outcrops are 

 visible in the I/rimari river. 



West of the old Ranchi road^ to where the Damuda enters the fields 

 I met with no outcrops of any coal. As the rocks, however,, through 

 which the river passes, are all Barakars, I think it more than probable 

 that coal occurs. 



MoJiwatolah rivers. — Returning to the east of the field there are 

 two rivers near Mohwatolah, one flowing east of it, and another west of 

 it. The former exposes no coal, and the other'^ only one seam, possessing 

 a northerly lie. 



Jainagar river, — This is the river in which the principal seams of 

 coal are seen. The section is unusually open, and affords a good oppor- 

 tunity for measurements. 



* The rivers in this field are as badly plotted as those of the Karanpura. This one is 

 wrongly shown as flowing into the Damuda^ 



f ( 325 ) 



