185 FEinidlJ : (;K0T,0(JY and coal resources of KOREA, c. p. 
For comparison with the Korean coals it will . be interesting 
at this point to give some hitherto unpublished 
and°Komrn coals^"'''"' iinalytical ligures relating to the coals of Barkui 
in the Pench Valley field, C'hhindwara district. 
The first column shows the composition of a large average sample 
of coal from Barkui. The second and third columns show 
separately the composition of the bright and dull material consti- 
tuting the alternating layers of coal. Those two analyses were 
made on small quantities of carefully picked material. The analysis 
and specific gravity of the bright coal should be compared with the 
figures for D. 183 in table 1 and the analysis and specific gravity 
of the dull coal with those of D. 154, K. 2 and K. 4 in the same 
table. The Barkui coal compared with the average coal of the 
Kurasia field is higher in fixed carbon and ash and lower in 
moisture and volatile matter. The figures are as follows : — 
Table 4. 
Analyses of Barkm Coal. 
Large sample. 
Picked material. 
Banded bright 
and dull coal. 
Bright layers. 
Dull layers. 
Moisture .... 
1-73 
2-20 
1-20 
Volatile matter 
24-07 
26-38 
19-23 
Fixed carbon 
52-59 
69-50 
45-31 
Ash 
21-61 
1-86 
34-26 
Specific gravity 
1-295 
1-44 
Calorific power 
7,315 
8,690 
6,270 
Sulphur .... 
0-73% 
Evaporative power 
13-62 
16-18 
11-68 
Caking properties . 
Cakes strongly . 
Cakes but not 
strongly 
Does not cake 
but sinters 
slightly. 
Colour of ash 
Light brown . 
Brown 
Light grey. 
