Genth.] 



98 



[Feb. 6, 



Alumina, APO^ 



Oxide Manganese, Mn^O^ 



Chalk, CaO... 



Magnesia, MgO.. 



Phos. Acid, F.OK. 



Sulphuric Acid, S.O.^. 



Per cent. Metallic Iron 



Phosphorus in 100 Iron. ..... 



Per ct. Iron, excluding Water, 



" The Pipe and Pennington Ores if melted together would make a very 

 superior Bessemer Iron. The Kerr & Bredin alone an inferior Bessemer 

 Iron. A separate analysis, however, of Kerr & Bredin shows that its 

 Phosphorus is concentrated in the Clay thereto attached, and it may be 

 that this Ore may be made available for Bessemer Pig, by proper treat- 

 ment befoi'e smelting." 



Analysis of Pennsylvania Furnace Limestone by Otto Wuth, 

 Chemist, Pittsburgh, Pa. 



From Quarry near the Furnace — a grey crystaline Stone : 



Silicic Acid. 5.08 



Alumina 1. 34 



Carbonate of Iron 69 



" <' Lime... 91.53 



" "Magnesia 1.31 



Sulphate of Lime trace. 



Organic Matter 05 



From Ore Bank Rail Road Cut — a partly crystalline drab-colored 

 stone : 



Silicic Acid 4.93 



Alumina 24 



Carbonate of Iron 87 



" '^ Lime 84.66 



" "Magnesia.. 8.98 



Sulphate of Lime 11 



Organic Matter .21 



