1032 



IRON 



1 Includes 224 tons of peat pig-iron. 



a Includes 37,246 tons of mixed anthracite and coke pig-iron. 



3 Includes 1,600 tons of mixed peat and charcoal pig-iron, and 1,778 tons of mixed charcoal and 

 bituminous coal pig-iron. 

 * Includes 48,000 tons of mixed anthracite and coke pig-iron. 



Hotting Mills in the United States in which Bessemer steel rails are rotted, and the 

 number of converters in each mill. 



1 These works made their first blow on Saturday, October 4, 1873 ; and their first steel rail on 

 Saturday, October 11, 1873. 



a These works made their first blow January 26, 1873, and their first steel rail March 15, 1873. 

 ? In course of erection. 



Production of Rolling Mills in United States. 



Below is a summary in nett tons of the ascertained and estimated production of iron and 

 steel in the United States in 1872 and 1873. 



