191 FER-MOR : GEOLOGY AND COAL RESOURCES OF KOREA. C. P. 
Assuming the possible correctness of this correlation, it will 
be noticed that the seam in the lower 
horizon (JNo. 1) is thick enough to be worth 
investigation at four localities (Nos. 1, 2, 5, and 6) distributed 
over a length of about IG miles at the eastern end of the field, 
whilst the seam at one other locality (No. 3) shows 2'+ of 
coal. The samples from this horizon gave the following analytical 
results :— 
MUKMA, 
Rakeya, 
Nagar, 
No. 1. 
No. 2. 
No. 5. 
Sam|)]o number. 
K. 42. 
K. 43. 
K. 45. 
Moisture ..... 
8-20 
0-00 
3-18 
Volatile matter .... 
29-50 
28-10 
20-98 
Fixetl carbon .... 
40-34 
50-40 
37-00 
A.sh 
15-96 
15-38 
32-24 
Total 
100-00 
10000 
100-00 
At Murma and Rakeya the coal is evidently of good enough 
quality to be worth working, if it can be proved 
Quantity of eoal. / / k • . r> i-U ..u 
to exist m sumcient quantity. (Jn the other 
hand 'the coal of Nagar further west is of little value and it is 
consequently impossible to put forward even the roughest of 
estimates concerning the quantities of workable coal in horizon 
1. It is sufficient to say that every square mile of coal of b foot 
thickness in the Murma and Rakeya area probably contains some 
5 J million tons of workable coal (assuming r4 as the specific 
gravity of the coal). 
The next seam above (horizon 2) is of no value at the eastern 
end of the field, Init at Nagar in the centre of the field, and at 
^ . 2 three localities towards the western end, namely 
Ghutra, Salba, and Balbahara, (Nos. 13, 16, 17, 
