366 
Cast Steel 
Exp, III. Swedish bar iron - > - 915 
Charcoal &th, or * grs. 152 
This mixture was subjected to a similar heat, 
and a perfect fusion effected* There was found 
of charcoal not taken up - « 65 
Charcoal disappeared, equal to 57 per cent* 87 
The metallic button resembled the produce of 
No. I. and II. and weighed - 96Q 
Gained by the fusion, equal to ^-~th part the first 
weight of the iron - - 45 ! 
Charcoal disappeared - - - 87 
Lost in the fusion 42 
Collective weight of the iron and charcoal used 1067 
Iron obtained - - grs. 960 
Charcoal remaining: « - 65 
— 1025 
Total loss in this experiment 42 
Exp . IV. Swedish bar iron - - 977 
Charcoal one eighth, or - grs. 122 
This mixture entered into fusion in nearly 
the same time as the former* There was 
found on the surface of the metal a portion 
of very beautiful carbon, which weighed 49 
Lost of charcoal in fusion, equal to 67 and 
2 tenths per cent. - - 82 
The metallic button obtained in this expe- 
riment was superbly carbonated, and appa» 
reptly formed an entire mass of carburet. 
It weighed ------ 102$ 
Gained in weight by the union of carbon, equal 
