CiiAi-. XXXVI.] 
NAGPTIT? : KACIIARWAIII. 
One of these being an analysis of a sample of the general stock of 
this deposit at a particular time is given below separately : — 
Manganese 
Iron 
Silica 
Phosphorus 
Moisture 
.31-77 
7-40 
(i-43 
0-07B 
0-24 
A sample of the stocks of Kacharwahi and Waregaon ore at Tharsa 
station in 1903 was analysed by Messrs. J. and H. S. Pattinson, with 
the following result : — 
Manganese 
Iron 
Silica 
Phosphorus 
Moisture 
53 01 
6- 64 
7- 20 
0-058 
0-.35 
The character of the ore obtained from this deposit is, however, best 
seen from the following figures, supplied by Mr. H. D. Coggan, showing 
the average analysis of the ore raised during the three years 1904 to 
1906 :— 
1904. 
1905. 
1906. 
Manganese ...... 
50 -83 
53 -53 
53 -r,3 
Silica ....... 
8-85 
7-51 
8-25 
Phospliorus ...... 
0 -OGo 
O-OS] 
()-!47 
These figures represent the analysis of the total output from the 
deposit for each year. 
The photograph (Plate 41, figure 1) illustratfs the disastrous effects 
Tfce working of the that may result from allowing a deposit to be 
deposit. wf.rked by contract vvjthout proper supervision 
on the part of the lease-holder. In this case the contractor had set 
his coolies to work all the good ore-bands a-iJ leave as upstanding 
ridges the valueless bands of quartzite, etc., the sole object being to 
extract the maximum quantity of ore in the minimum of time, without 
any regard to the future working of the deposit. As a result of this 
policy the mati or waste had been dumped quite close to the edge of 
the excavation, and later this had been increased in size so that 
the waste was in many places actually slipping back into the quarry. It 
is customary on the Indian manganese mines to pay the coolies so much 
per 1,000 cubic feet for the manganese- ore as measured in the stacks 
and also per 1,000 cubic feet of the volume of the cavity made in 
