946 MANGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [PaRT IY : 
and indicates an abnormally low percentage of braunite — about 25 
per cent. 
The following figures supplied by Mr. H. D. Coggan show the average 
analysis of the ores raised at this deposit during the years 1904 to 1900 : — 
1904. 
1905. 
1906. 
Manganese ..... 
49-87 
50-26 
49-67 
Silica ...... 
6-10 
8-36 
6-85 
Phosphorus ..... 
0-128 
0-095 
0-106 
They agree very closely with that of my sample. 
Four other analyses of Manegaon ores, supplied by Messieurs Jambon 
& Cie., two made by Messrs. J. and H. S. Pattinson & Co. of Newcastle, 
and two by Messrs. W. H. Pearson of London, show the limits and mean 
values given below. Two of the analyses were made on hand-specimens 
and two on samples of a considerable amount of ore. These analyses, 
whilst showing that higher grade ore than that usually exported can be 
obtained at this deposit, are not to be regarded as typical. 
Manganese 
Iron 
Silica . 
Phosphorus 
Moisture . 
Limits of 4 
analyses. 
53 
31 
to 
56 
31 
55 
00 
3 
46 
to 
4 
63 
4 
20 
6 
95 
to 
8 
66 
7 
83 
0 
063 
to 
0 
112 
0 
085 
0 
•17 
to 
0 
•19 
0 
18 
Mean of 4 
analyses. 
At the time of my first visit in February 1904 the ore-bands had been 
The working of the Opened up for a considerable portion of their length 
deposit. by means of irregular excavations, the usual care- 
lessness being shown in the disposal of the waste. On a subsequent 
visit in December 190(5 it was found that this mistake had been recti- 
fied and the handling of the ore greatly facilitated by means of a system 
of tramlines and ore-shoots, although the ore-shoots were no longer 
in use. These lines connect up with the line running to Tharsa via 
Milndri and Waregaon, the total distance being 13J miles. All the 
talus-ore deposits on the south side of the ore-band were being care- 
fully worked over. As will be judged from the figm-es given above for 
the length and width of the deposit a very considerable quantity of 
manganese-ore (averaging 50 per cent, manganese and upwards) should 
be obtained from Manegaon before it is worked out. The situation 
of the ore outcrop on the slope of a ridge will possibly make it a little 
