Oxides of Carbon and Iron, 23 9 



Experiment V. 

 Charcoal prepared from Beech, 



Composed of oxide of carbon 

 Ashes 



100 parts. 



15 grains of charcoal of beech mixed with 200 grains of 

 oxide of iron, yielded by fusion a metallic button of iron 

 weighing 42 grains, (equal to 21 per cent.) 



71*5 grains of raspings of this wood, (found equal to 15 

 grains of carbon,) being mixed with 200 grains of oxide of 

 iron, there resulted from the fusion of this compound a me- 

 tallic button that weighed (= to 27i percent.) 54'5 grains. 

 Revived as above with charcoal 42 



Increase (equal to Q\ per cent.) 12*5 



Experiment VI. 

 Charcoal prepared from the American Maple-Tree, 

 Composed of oxide of carbon 96*140 

 Ashes - - 3-860 



100 parts, 



13 grains of this charcoal and 200 of oxide of iron gave 

 a metallic button weighing 50 grains, (equal to 25 percent.) 

 from the oxide of iron. 



76 grains of this wood (equal to 15 grains of charcoal,) 

 and 200 grains of oxide of iron, yielded by fusion a but- 

 ton of iron, weighing (equal to 30 [ per cent.) 61 grains. 

 Revived as above with charcoal 50 



Increased, (equal to 5\ per cent.) 1 1 



Experiment VII. 

 Charcoal prepared from Spanish Mahogany, 



Composed of oxide of carbon 96* 1 54 

 Ashes - - 3-846 



100 parts. 



1 5 grains 



