FIG. 1. STEEL BAIL OF GOOD QUALITY, 

 MAGNIFIED 100 DIAMETERS. ROLLING 

 FINISHED AT THE RIGHT TEMPERATURE 



"'.*".* *t ; ' ;:#*;$* >,*:.** >'*-*>'*:f^ ,'' > : V 



*& .$ s^Xffgsc^^*^^ ^S 



.^.-/.'""^y '. >.y-'V;'V : -- ' ,<-;".>**^^a>** - *>-. '*>*4y'.>^ 

 C A 



C A 



FIG. 3. LONGITUDINAL SECTION OF STEEL INGOT, SHOWING A ' ' PIPE ' : 

 AT C, AND BLOW-HOLES AT A AND B 



