868 



WISCONSIN AGEICULTUEE. 



AifALYSIS BY PROF. J. L. COSSELS, 

 OF CLEVELAND. 



Peroxide of Iron, 7 6. 7 4 • 



Lesqui oxide of Manga- 

 nese, 1.05 

 Clay, 4.00 

 Silex, lO.dO 

 Water, 6.0U 

 Loss, 2.21 



100.00 



53.72 iron 

 23.02 ox. 



100. 



The trifling differences between the two analyses, are ex- 

 plained by the specimens being selected at different times. 

 These analyses prove the ore to contain about 50 per cent, of 

 iron, combined with alumnia, silica, manganese, &c., a highly 

 favorable combination, as regards ease of reduction. 



The structure of the ore, and the manner in which it has de- 

 composed, render mining a comparatively trifling item in 

 supplying the furnace. The ore is delivered at Mayville, four 

 and a half miles from the bed, at 75 cents per ton. It requires 

 no roasting or fluxing, but yields its iron by the simplest pro- 

 cesses. Thus far no attempts have been made to manufacture 

 wrought iron from it, but the experiments undertaken have 

 been confined to pig iron and castings. It is found to be cold 

 short, and hence too brittle for stoves, but makes the best of 

 pipe castings, for building machinery, &c. 



The location of the ore as to fuel, and facilities of transporta- 

 tion, is also equally fortunate. A belt of heavy timber encircles 

 it on all sides for many miles, furnishing charcoal cheaply and 

 abundantly. The products of the furnace can be distributed in 

 all directions, by the La Crosse E.E., which crosses the ore bed 

 at Iron Eidge, and connects with other important lines. 



The Northwestern Iron Co has a blast furnace in operation 

 at Mayville, which produced during the last blast 352S tons of 

 pig iron. They make a ton of pig iron from two and a quarter 

 tons of ore, allowing for all waste in manufacturing. 



They are now making pipe and heavy castings of the best 

 quality, directly from the ore, at prices which defy all competi- 



