JAN.— MAR. 1857.] Dr. Walker's Report on Coal at Eotah, 261 
abundant in particular places. It is found in some places in 
laminaB 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 
Xunker or Travertine Deposits near Culdacoorchee and Ambasa- 
moodrom. 
" The Vizagapatam Graphite is perhaps also found in laterite, of 
Tjvhich 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 horing for Coal at Kotah, a village 10 or 12 
miles from the Junction of the Wurdah River ivith the 
Godaveri/y 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- 
