496 
MANGANESE DEPOSITS OF INDIA: ECONOMICS. [ParT III : 
demand for Indian ores, it seems to have been possible to find a market 
for almost every variety of ore that could be obtained, except the very 
siliceous ones. There has for some years been a steady demand for the 
ores of Vizagapatam, ranging in phosphorus from 0'25 to 0*45%, and for 
the Jhabua ores averaging 0*20% of phosphorus. During 1905 and 1906 
a market was also found for Vizagapatam ores containing between 30 and 
40% of manganese ; and I understand that during 1907 some of the ores 
from Shimoga in Mysore for which a market was foimd ran as low 
as 30% in manganese. The constituent that seems to be of much more 
importance than the phosphorus as a deleterious constituent is the sihca 
and I do not know of any cases of contracts made for the supply of 
Indian manganese-ores containing over 10% of this constituent. 
According to John Birkinbinei the requirements of the steel manu- 
facturers, particularly with regard to the permissible phosphorus, were 
altered in a schedule issued in the latter part of December 1905. This 
schedule appUes to the Carnegie Steel Company and the Illinois Steel 
Company. 
' Prices are jjlaced on ores delivered in the Pittsburg, Pa., and Chicago, 111., dis- 
tricts, per long ton, containmg not more than 8 per cent silica and not more than 0 -25 
per cent phosphonis, and are subject to deductions as follows : 
■ For each 1 per cent in excess of 8 per cent silica there shall be a deduction 
of 15 cents per ton, fractions in proportion : for each 0-02 per cent or fraction thereof 
in excess of 0-2.5 per cent phosphorus there shall be a deduction of 2 cents per unit 
of manganese per ton. 
Prices 
per unit. 
Iron. 
Manganese. 
Metallic manganese-ore containing above — 
Cents. 
Cents. 
49 per cent. ..... 
C 
30 
4G to 49 per cent. .... 
« 
2!) 
43 to 46 per cent. .... 
28 
40 to 43 per cent. .... 
27 
' • Mineral Resources i>f the United IStates ' for 1905. published in 1906. 
