43 
Spee. gravity . . 1-422 
Löss on heating at 212° - 5-40 
Löss at red heat (including 
moisture) - - 31 • 00 
Carbon 
Hydrogen 
Oxygen and nitrogen 
Sulphur - 
Ash . » 
Coal dried at 212°. 
63-94 
4-60 
11-36 
1-00 
18-90 
100-00 
178. Coke from the Sanktoria coal. 
179. Coal from Beldanga Colliery, Ranigunj Coal- 
field. Depth of shaft, 58 feet; thickness 
of seam, 10 feet. 
Spee. grav. - - -1-458 
Löss on heating at 212° - 5-200 
Löss at red heat (including 
moisture) - - 33-400 
175. Coal, from Mudhoopoor Colliery, Raniguni 
Coalfield. Depth of shaft, 10.9 feet; thiek- 
ness of seam, 13 feet. 
Spee. gravity - . 1 • ,36'ö 
Löss on heating at 212° - 6’60 
Löss at red heat (including 
moisture) - - 34-20 
Carbon 
Hydrogen - 
Oxygen and nitrogen 
Sulphur - 
Ash 
Coal dried at 212°. 
■ 68-36 
4-99 
11*33 
0-82 
14-00 
100-00 
Carbon 
Hydrogen - 
Oxygen and nitrogen 
Sulphur 
Ash 
Coal dried at 212°. 
- 64-28 
- 4-48 
- 11-18 
- -86 
- 19-20 
100-00 
176. Coal, Cheenakoory Colliery, Raniguni Coal 
field. Depth of shaft, 2.32 feet; thickness of 
seam, 6J feet. 
Spee. gravity - . 4-270 
Löss on heating at 212° - 4 -50 
Löss at red heat (including 
moisture) 
Carbon 
Hydrogen - 
Oxygen and nitrogen 
Sulphur - 
Ash 
Coal dried at 212°. 
- 32-60 
66-12 
4-68 
13- 97 
1-23 
14- 00 
100-00 
177. Coal from Sanktoria Colliery, Ranigunj Coal- 
fieid. Depth of shaft, 152 feet; thickness 
of seam, 11J feet. 
Spee. grav. - - -4-343 
Löss on heating at 212° - 2-200 
Löss at red heat (including 
180. Coal penetrated and altered by the intrusion 
of (trap) volcanic rocks. 
181. Coal having a columnar structure and partially 
coked, induced by the contiguity of a large 
dyke. 
182. Coal from Dumarkoonda Colliery, Ranigunj 
Coalfield. 
Spee. grav. . . 4-368 
Löss on heating at 212° - 2'00 
Löss at red heat (including 
moisture) - - 23‘20 
Carbon 
Hydrogen - 
Oxygen and nitrogen 
Sulphur - 
Ash 
Coal dried at 212°. 
- 71-86 
- 4-67 
- 8-78 
•69 
- 14-00 
100-00 
183. Coal from Baboosole Colliery, Ranigunj Coal 
field. Depth of shaft, 144 feet; thickness 
or seam, 13 feet. 
Spee. grav. - 1 ■ 378 
Löss on heating at 212° - 6"80 
Löss at red heat (including 
moisture) 
moisture) 
Carbon 
Hydrogen - 
Oxygen and nitrogen 
Sulphur 
Ash 
- 25-40 
- 68-89 
- 4-52 
- 12-27 
- -82 
- 13-550 
Carbon 
Hydrogen - 
Oxygen and nitrogen 
Sulphur - 
Ash 
Coal dried at 212°. 
- 34-20 
- 68-20 
- 5-04 
- 10-66 
- 1-10 
- 15-00 
100-00 
100-00 
Coal dried at 212°. 
This coal yields 74-6 per Cent, of coke. 
The coals noted above are all from the pits of the 
Bengal Coal Company, hj whom they have been con- 
tributed to the Geological Survey. 
184. Coal from Mungulpoor Pit, Ranigunj Coal- 
neld. 
Spee. grav. - - 4-370 
Löss on heating at 212° - 5*80 
Löss at red heat (including 
moisture) - - 32*20