Chap. XXIX. J MONGmrR disteict. O'lT 
The value of this ore would uot, however, lie in its manganese, but in 
the cobalt contents; and although this constituent is not high enough in 
the specimen analysed to be worth treating for its extraction, yet ores 
containing higher percentages of cobalt may exist in the neighbourhood. 
The rocks of this hill are said by Walker ^ to resemble in many re- 
spects those classified as Dharwa'rs. 
M^nbhum Distriet. 
V. Ball in his account of the minerals of Maiibhum 2 gives some 
analyses of rocks and minerals by Ormsby. One of these, a porphyritic 
gneiss, shows 0-8-i per cent. Mn304 ; and another, of potstone, 0"G-1 per 
cent. Mn304. The localities for the specimens analysed are not given. 
See also p. 615. 
Monghyr District. 
A few years ago Babu Baidyanath Saha3 found largo loose blocks of 
mangane.se-ore at the foot of the Katnowa or Kutowa Hills and also iu 
the hill itself. These hills are situated north-west of the block hut between 
Gidhaur and Jamui Stations, East Indian Railway. He reports that 
the quantity available is quite small and that a sample assaved by Babn 
Hem Chandra Dutt of the Albert College, Calcutta, yielded 28-26 per 
cent, of manganese with a little barj^a. Three specimens collected by 
Baidyanath Saha are in the collection of the Geological Survey. 
One of these (19-201), from the Kutowa Hills, 4 miles S. S. E. of 
Jamui, is dull blue, black manganese- ore with an exterior weathering 
in a pisolitic manner. The streak is darlc brown, so that the ore is prob- 
ably very high in iron. A second specimen (19-202) from the satue 
locality is similar to the above, but is reniform in shape, showing that 
the ore is probably of concretionary origin. 
A third specimen (19 "194) from Pandipahari Hills, 4 miles S. "W- 
of Jhajha Station, E. I. R., consists of detrital laterite composed of 
angular fragments of quartz cemented by somewhat manganiferous 
iron oxide. The rock looks blackish because a thin coating of this 
cement covers nearly all the quartz grains. 
Morbhanj State. 
Traces of manganese-ore were found by Mr. P. N. Bose in lafcerite 
close to banded blackish quartzites near Kuliana.4 
1 Mem. Geol. Surv. Ind., XXXIII, pt. 3 p. 19, (1902). 
2 Mem. Q. S. I., XVIII, pp. 103. 105, (1881). 
3 MS. of an unpublished thesis, for M. A. degree of Calcutta University, entitled 
' On a peculiar type of breccia of the Monghyr district.' 
4 Eec. G. 8. I ;XXXI, p. 170, (lilC4). 
