ECOlSrOMIC RESOURCES: IRON. 117 



Adur.'—MY. D. Smith describes some ore which he examined 

 about two miles north of Ghorhut in the vicinity of Adur, in the 

 following- words : it is ''a very partial deposit of magnetic ore of the very 

 richest quality, but so limited in quantity as to be of no importance." 



Morwaie.— On the faulted boundary of the Hutar coal-field south of 

 Morwaie there is, in conjunction with some fault rock, an outcrop of 

 magnetite much altered and decomposed, principally into red bgematite. 

 It is imperfectly exposed, and I cannot speak definitely as to quantity ; 

 but I failed to meet with it again in any of the cross-sections of the 

 line of faulted contact. 



Kotam.—'Neav the junction of the Kaliburna river with the Koel and 

 also close to Kotam, small fragments of magnetite, some superficially 

 altered to brown and some to red haematite, are found scattered about 

 with fragments of vein quartz. Save at Chipars, there are, I believe, no 

 smelters in the Semah valley at present. Several families of Aguriahs 

 have had to give up their trade owing to forest conservancy having put 

 a stop to the manufacture of charcoal. 



From the foregoing it will be seen, with reference to the commer- 

 cial aspect of the question, that two conditions, which are of primary 

 importance, Isf, the existence of an abundance of ore— a practically 

 inexhaustible supply— and 2nd, the possibility of working such an ore 

 by a simple system of mining, are not distinctly afforded by any of 

 the abovenamed deposits; and, in the absence of such evidence, it 

 will perhaps be, in the long run, more profitable to direct attention 

 rather to those ores which, though less rich, are abundant and can be 

 raised without any diflB.culty whatever. 



The magnetites, if found near the line of transport, would always be 

 of value for ' fettling ' and, so far as the supply would go, for mixing with 

 the less rich ores. 



Carbonates and carbonates altered into Immatites. 

 This heading has been adopted, as it is most probable that, notwith- 

 standing the present rareness of carbonates, most, if not all, of the 



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