Cast Steel* 
359 
Charcoal remaining 310- grains. 
Iron obtained - 1233 grains. 1543 
Total loss in fusion 211 
The quantity of charcoal which disappeared in this ope- 
ration was equl to— l. thpart the weight of the iron. 
4~^ ' Grains, 
Exp * II. Swedish bar iron - - 1093 
Charcoal or - - grs. 273} 
The fusion of this mixture was effected in 
fifty minutes. When cold, the crucible 
was found entire, and containing of charcoal 
?iot taken up 90} 
Lost in the fusion 183 
equal to 67 per cent, of the original weight of char- 
coal. A fine button of so per carbonated crude 
iron was found, which weighed - 1143 
Gained in weight by combination of charcoal 50 
equal nearly to p-d part the weight of the iron employed. 
The fracture of this button was inferior in point of lustre 
and prominency of crystal. It was, however, similar to 
the usual run of the No. L iron of the manufacturer. 
The quantity of charcoal which disappeared in this ex- 
periment was equal to -Jth part the weight of the iron. Grs. 
The aggregate of the mixture weighed 1366^ 
Charcoal remaining 90* grains. 
Iron obtained - 1143 grains, 12331 
Lost in weight upon the whole 133 
Exp* III. Swedish iron in pieces - - 1143 
Charcoal 1th, or - grs. 190 
This mixture was fused in thirty minutes, 
and was allowed to cool to a low red heat 
