1020 
MAMGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [ pART IV 
44 to 56 
13 to 4 
1 to 0-50 
001 to 0-03 
I have no analyses of the Kamataru ores. Mr. Aubert tells me, 
however, that several analyses of ores from this area range between 
the following limits : — 
Manganese ...... 
Iron ....... 
Silica ...... 
Phophorus . . . . . . 
Descpiptions of Deposits. 
My visit to the deposits of the Sandur Hills was so hurried and brief 
that I had to confine myself to a general survey of a few of them, in 
order to work out their origin and mode of occurrence, and was not able 
to give that attention to details, such as dimensions, dips, and varia- 
tions in composition from one part to another of a deposit, as would 
have enabled me to give a connected account of each. To do this would 
be the work of some months. Hence 1 propose to supplement what 
has been written in the foregoing pages merely by a few notes on some 
of the deposits visited. 
On page 1003 will be found a list of deposits divided into groups 
according to the area in which they occur. 
Group I.— The Ramandrug Deposits. 
In addition to the deposits listed on page 1002, which all occur on 
the edge of, or on top of, the Ramandrug plateau, there are several 
occurrences of manganese-ores of no commercial importance, but consi- 
derable scientific interest, to be seen in the sections on the ghat road 
down to Narayandevarkerra. These have already been noticed on page 
1007, and also by Foote. According to him l : — 
'The schist beds in which the manganese-ore occurs in the form of compact 
earthy-textured, dark grey or black concretionary nodules, lie rather more than 
half-way down the ghat road which leads to Narayan Devar Kerra. The schists are 
drab in colour, and the nodules show up distinctly'. 
A ' fair specimen ' of this ore was analysed by Mr. Philip Lake, 
with the following result : — 
Insoluble matter and Si02 
Fe, O3 + Al., O3 . . . . 
Mn"0„ ...... 
CaO ' 
Combined water .... 
Moisture ..... 
38-96 
12-82 
42-90 
0-78 
3-16 
0-67 
99-29 
1 Mem. G. S. I., XXV, p. 194, (1895). 
