360 WISCONSIN AGEICULTUKE. 



of the castings, and by its always running solid, prevents the 

 loss of castings, which might occur with more open or 'porous 

 irons. Yours respectfully, 



Fkank Letz, 



Chicago, June 11, 1857. 

 To THE Northwestern Iron Company : 



Gents : — We have used your iron made in Wisconsin, and 

 can say that from the smoothness of the castings, and its solid- 

 ity, we consider it a superior pig iron for the manufacture of all 

 kinds of water, gas and steam pipes. 



For machinery purposes it requires an admixture of stronger 

 iron, giving the stronger iron soUdity and smoothness of sur- 

 face. Eespectfully yours. 



Stone, Boomer & Bouton. 



Milwaukee, June 12, 1857. 

 To THE Northwestern Iron Company : 



Gents : — We have used your pig iron in our foundry in this 

 city for nearly four years, and from our knowledge of its pecu- 

 liar qualities, can recommend it as being a very durable and su- 

 perior iron for building purposes, water, gas and steam pipes, 

 lamp posts, etc. 



For machinery it requires an admixture of stronger iron, or 



scrap, but on account of its solidity, and the smoothness with 



which it runs, it improves the quality of stronger and even 



higher priced iron. 



Decker & Seville. 



Milwaukee, June 9, 1857. 

 To the Northwestern Iron Company: 



Gents : — We have used your pig iron some four years, and 

 from the smoothness of the castings made from it, and its solid- 

 ity^ which is peculiar to your iron, we consider it the best arti- 

 cle that comes to this market for house building purposes, and 

 more especially for gas, water and steam pipes. 



