824 MANGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [ PaRT IV : 
not iron-ore. The ore thus exposed was pyrolusite intimately associated 
with the chert-like limonite so common on this ridge. I am indebted 
to Mr. P. C. Dutt of Jabalpur for the following analysis by Mr. F. W. 
Harbord of a sample of ore taken from a trench situated a little to the 
east of the trench noticed above. 
Manganese ........ 40-78 
Fe.,03 and AloO. 12-40 
Silica 18-04 
Sulphur 0-004 
Phosphorus 0-160 
Moisture 0-40 
During the year 1907 Mr. J. Kellerschon has worked this deposit 
on behalf of the Carnegie Steel Co. The ore- body opened up was 
found to be about 10 feet thick, 240 feet long, and 120 feet wide. 
The amount of ore won to the end of 1907 was 7,100 tons. Of this, 
5,000 tons has been taken to kSihora Station, E. I. Ry., ready for 
despatch. The analysis of ore from three different pits where the 
thicknesses of the ore layer were 8, 10, and 11 feet, respectively, and 
of 6,000 tons of ore after sorting, are shown below, the figures having 
been supplied by Mr. Kellerschon : — 
! 
i Pit 8 feet 
deep. 
Pit 10 feet 
deep. 
Pit 11 feet 
deep. 
Sorted ore, 
average of 
6,000 tons. 
Manganese. 
37-38 
38-14 
36-60 
42-03 
Iron . 
15-40 
15-80 
16-00 
1310 
Phosphorus 
0-221 
0-189 
01 71 
0182 
Silica 
10-89 
11-21 
11-00 
8-84 
10. Sihora. 
See Bose, pages 84, 85, 223, 225. 
11. Mangela. 
See Bose, page 75. 
On the southern slope of the hillock marked on the map as "1520 
I took a sample (A. 7) of micaceous hematite. The pieces in the sample 
consisted of micaceous hematite with occasional thin jasper bands, and 
some yellow shaly bands. That the ore once contained magnetite is 
shown by the pimple-like elevations on the hematite, but these pimples 
