2i:5 I'KIUIOK : GEOLOGY AND COAL RESOURCES OF KOREA; C. P. 
CHAPTER XI. ■ 
GENERAL ECONOMIC SUMMARY. 
From the foregoing pages it is evident that coal of good quanty, 
and in sufficiently thick seams to deserve careful investigation, 
exists in both the Sanhat and Kurasia coalfields. 
In the Sanhat field two seams of value were examined. The 
lower of these (No. 1) is valueless in the western half of its course, 
but shows thicknesses of 4' |- to 9' over a length of 16 miles in 
its eastern portions. The analyses of the samples show the follow- 
ing limits and mean : — 
Limits. 
Mean. 
Moisture ...... 
318 to 8-20 
5-79 
Volatile matter ..... 
20-98 to 29-50 
28-22 
Fixed earbon ..... 
37-()0 lo 50-4() 
44-80 
15-38 to 32-24 
21-19 
100-00 
The upper seam (No. 2) is valueless in its eastern portions, but 
ranges from 3^'+ to 9' 9"-|- towards the west. The samples taken 
show the following liniits and 
mean : — 
Limits. 
Mean. 
Moisture ..... 
3-10 to 6-71 
4-19 
N'olatile matter ..... 
21 06 to 20-33 
24-00 
Fixed carbon .... 
36-82 to .50-16 
4400 
22-98 to 36-68 
27-81 
100-00 
