MANGANESE DEPOSITS OF INDIA : DERCT^irxiVE. [PaRT IV : 
possibly a low rocky ridge described as running parallel to the Tavoy 
river for some miles. There is in the Museum a specimen of ferrugin- 
ous manganese-ore that is partly psilomelane. Mr. Theobaldl once 
obtained near Henzai an impure earthy cobalt containing manganese, 
but could learn no further particulars beyond the locality. 
Central India. 
Bhopal. 
In 1907, the Private Secretary to Her Highness the Begum of P.hopal 
forwarded some specimens to the Geological Survey that were found to 
consist of psilomelane. My colleagues Messrs. A. M. Heron and H. 
C. Jones subsequently examined the occurrence and the following is 
taken from their accomit of it. The ore was found during the excavation 
of a tank about 500 yards N. E. of Kanugaon, a village 2 miles west 
of Bhopal town. It occurs in the lower part of the surface soil as irre- 
gular nodules up to 6 inches across. These have apparently weathered 
out of the Lower Bhander Sandstone (a division of the I'^pper Viiidhy- 
ans) beneath. This rock here contains several bands of conglomer- 
ate, in which, and in the sandstone, the psilomelane forms irregular 
patches. The psilomelane also occurs as dendroid films in the sandstone, 
and, to a small extent, as a cementing material in the conglomerate. 
Patches of limonite are also found, and this mineral is sometimes mixed 
with the psilomelane. In the immediate vicinity of the excavation the 
rock, wherever exposed, shows some of these structures, but they were 
not seen elsewhere in the neighbourhood. No commercial value is 
attached to this occurience : for the ore loose in the soil is small in quan- 
tity, whilst it is even more scattered in the rock. 
The Dhar Forest. 
In the outlying portion of the Dhar State known as Nimanpur or the 
Dhar Forest, as well as in Indore State, Central India, and the Nimar 
district of the Central Provinces, the sandstones and conglomerates of 
the Lameta formation rest on a peneplain of Bijawar and Archaean rocks. 
In this area the Bijawars consist principally of limestones, with '|uartz- 
ites, slates, and curious breccias, which are probably fault-breccias and 
hence, although in the Bijawar formation, probably of later age, prob- 
J Bee. Geol Surv. Ind., VI, p. 95, (1873). 
