jan. — mar. 1857.] Report on the specimens of Coal } fyc. fyc. 265 



although quite free is somewhat shallow, early after the rains. 

 The next obstacle is the two whirlpools at Mooknoor which when 

 the river is full, present a considerable obstacle, but not so when 

 it is moderately full at which time the boatmen, who are very 

 expert, manage to steer between them without danger. The pas- 

 sage between Nulumpully and Mooknoor, is only tedious after the 

 rains as during the freshes the rocks may be sailed over. The 

 last obstacle in the Godavery is just at the junction of the Inda- 

 rootee. The channel through the rocks, which are there high is 

 very narrow, and pointed ones in it render the passage somewhat 

 dangerous, " some of these" adds Captain Fenwick " I had removed 

 the nature of the rock being soft slate." 



Specimens of Minerals belonging to the Coal Measure to accom- 

 pany the report. 



No. I. and No. II. are referred to and explained in the report. 



No. III. Shale and Bituminous shale from Kotah. 



No. IV. Prismatic Limestone from the same place. 



No. V. Slate Coal. 



No. VI. Specimens of Coal with fossil impressions chiefly of 

 lepidodendrous plants to show that the measure is a true Coal. 



No. VII. Specimen of Coal found in the riverbed (detached). 



No. VIII. Specimen of Iron ore (brown clay) found in the 

 vicinity of Kotah. 



Report on specimens of Coal, Prismatic Lime Stone and Iron Ore, 

 forwarded with Dr. Walker's Report, by James Dodd, Esq., Assay 

 Master, in charge of Chemical Examiners' 1 Department, 

 Calcutta. 



Coal. Bituminous slate. 



Volatile matter 29 per cent. No. 1-41 -25-2-26-667. 



Ash 29 do. „ 46-25 „ 66-250. 



Carbon 42 do. „ 12 50 „ 6 083. 



Prismatic Lime Stone, 

 Carbonate Lime. . , . 27-3 per cent. 

 Iron Ore 



Metallic Iron 22-4 do, 



