ON SOME PRINCIPLES OP WHITE CINNAMON. 
69 
sembled that of oil of cajeput, had a specific gravity = 0.941 
and its boiling point amounted to 473° F. It was formed of 
I. II. 
Carbon, - 80.56 80.52 
Hydrogen, - - 10.66 10.88 
Oxygen, - - - 8.78 8.60 
It is to be regretted that the total quantity of crude oil 
at the disposal of the operators was too small to allow of 
new investigations with the view of arriving at a more 
exact separation, and at a more accurate analysis of these 
different oils ; but, at all events, this work shows that the 
oil extracted from white cinnamon is probably formed of 
four different oils ; one of them is certainly identical with 
oil of cloves, and another is probably identical with the 
most important principle of oil of cajeput. 
III. ASH OP THE BARK. 
The bark dried in the air left, after combustion, nearly 
six per cent, of ash. The latter contained nearly 86 per 
cent, of its weight of carbonate of lime, and not quite two 
per cent, of silica. It contained only a small quantity of car- 
bonate of potassa, but it contained altogether more than four 
per cent.of potassa, and 1.3 per cent, of soda ; the other bases 
were magnesia, peroxide of iron, oxide of manganese, and 
alumina. The bases were partially combined with chlo- 
rine, and sulphuric and phosphoric acids. About 2.5 per 
cent, of phosphate of protoxide of manganese was found. 
London Chemist, from Jinn, der Chem< 
