jan. — mar. 1857.] Br. Walker's Report on Coal at Kotah. 261 



abundant in particular places. It is found in some places in 

 laminae of considerable size, particularly in a laterite hill about 25 

 miles N. E. of Trevandrum at a place called Caviattencoodul, near 

 the foot of the Ghat mountains. 



" It is also found in laminae of good size in the disintegrated 

 gneiss of the Ghats on the Tinnevelly side, also common in the 

 Kunker or Travertine Deposits near Culdacoorchee and Ambasa- 

 moodrom. 



" The Vizagapatam Graphite is perhaps also found in laterite, of 

 ■which there is a large deposit at Bimlipatam. 



" The objections made to the specimens of Graphite sent by 

 me to the London Exhibition of 1851, were because of the impu- 

 rities attached to it, but one motive in the selection of the specimens 

 forwarded was to exhibit the matrix or laterite rock in which they 

 were found." 



Dr. Walker's report on loving for Coal at Kotah, a village 10 or 12 

 miles from the Jim ction of the Wurdah River with the 

 Godavery, in the months of April and May, 1848. 



[The following paper was received from Hyderabad and communicated by the 

 Chief Secretary to Government to the Literary Society for the information of 

 Mr. Wall, the Coal and Mineral Viewer of this Presidency.] 



In a paper published in the Journal of the Asiatic Society of 

 Bengal for the month of June 1841, and to which reference is 

 now made, I showed the probability of a coal bed existing on the 

 left bank of the Pranheetah or Wurdah river, close to a small vil- 

 lage called Kotah or Kotahpilly, about ten or twelve miles from the 

 junction of this river with the Godavery, and sixteen miles N. W. 

 of the large village of Mahdeopore. 



Encouraged by the indications detailed in that paper, a bor- 

 ing operation was undertaken to ascertain the extent and position 

 of the coal stratum, if such existed, the superintendence of which 

 was entrusted to me. 



The rods, drills and augers of the boring machine were made 

 up at the Ordnance stores, Bolarum, and from the extreme dif- 



