E. W. CLAYP0LE. 



Sesquioxide of iron, 86.000 



Sesquioxide of manganese, 072 



Alumina, 1.848 



Lime, 750 



Magnesia, 403 



Sulphuric acid, 040 



Phosphoric acid, . 082 



Water and organic matter, 975 



Siliceous matter, 9.830 



100.000 



Metallic iron, 60.200 



" manganese, 050 



Sulphur, 016 



Phosphorus, 036 



Phosphorus, in 100 parts iron, . 059 



Unfortunately, however, this ore occurs only in thin 

 seams seldom or never exceeding four inches in thickness, 

 and flanked with hard sandstone. Both these reasons com- 

 bine to render its extraction unprofitable. 



Pocono iron ore. 



It is not likely that beds of good iron ore exist in the 

 sandstone of Peters and Cove mountains, and in Buffalo 

 and Berry's mountains. Until iron becomes much more 

 valuable than it is at present, or is likely to be for many 

 years to come, it is not probable that any labor or money 

 will be spent in the search. It is impossible, therefore, to 

 say anything at present about their value or extent. 



The charcoal furnaces in Perry county were blown out 

 about 1840-45, and have never since been relighted, the 

 substitution of coal and coke for charcoal in the process of 

 iron smelting having been here as in other places the means 

 of removing the iron manufacture from its old seat to places 

 nearer or more accessible to the coal fields. All the iron 

 now smelted in Perry county is smelted in furnaces on the 

 line of the Pennsylvania railway. 



The principal points to be considered in mining are: — 



Lst. Thickness of ore bed. 



2d. Quality of ore or yield of iron. 



3d. Freedom irom gangne of clay or sand. 



4th. Freedom from partings of shale or clay. 



