ELISHA MITCHELL SCIENTIFIC SOCIETY. 8 1 



I. THE BALLOU OR RIVER BELT. 



This, the most easterly of the three ore-belts, crops out 

 along the north fork of New river, and has been opened 

 at several points on the farm of William H. Brown. 



Opening No. i on the west bank of the river at the falls, 

 about one mile north of Grumpier P. O. , is a large cut, 

 exposing probably 30 feet of ore-material, composed of 

 hornblende, gneiss, and epidote, which is split up at three 

 points by lenticular masses of magnetite. From the con- 

 dition of the exposure it was not possible to determine the 

 true thickness of the ore. 



An analysis of an average sample from here shows: 



Per Cent. 

 Silica 27.59 



Metallic iron -- 53.99 



Sulphur 0.055 



Phosphorus -- 0.063 



The ore crosses the river north-easterly from here to the 

 property of John C. Plummer, but no openings have been 

 made. 



Opening No. 2 is located about half a mile west of the 

 river, near Mr. Brown's house. 



This cut was also partially caved in and filled with 

 water, so that a clear inspection was not practicable. The 

 exposed material shows : 



1. About 4 feet of soft decomposed schistose gangue, 

 carrying finely disseminated grains of magnetite ; above 

 this, 



2. About 5 feet of decomposed mica-schist and quartz ; 

 and above these, towards the face of the cut, 



3. About 12 feet of mixed material containing strips of 

 harder, richer ore, 2 feet and more in thickness. 



Of the soft ore it has been found by washing that fully 

 50 per cent, is magnetite, an analysis of which by Mr. A. 

 S. McCreath shows: 7 



