136 MR. F. C. CALVERT AND MR. R. JOHNSON ON THE, &c. 



may be better appreciated by those who may consult it, with 

 the view of obtaining such information as may lead them 

 to those improvements to which we think our investigations 

 tend. 



Pig Iron used . . . 



Sample No. 1 

 2 

 3 

 4 

 6 

 6 

 7 

 8 



Puddled Bar 9 



Wire Iron 10 



12.0. 



12.40 P.M. 



1.0. 



1.5. 



1.20 



1.35 



1.40 



1.45 



1.50 



Finally, we wish to express to Mr. Simeon Stoikowitsch 

 our best thanks for the ability and perseverance which he has 

 shown in helping us in these long and tedious analyses. 



