98 
ON THE MAGNOLIA GRANDI FLORA. 
ed. Professor Emmet concludes by observing that the pro- 
perties of liriodendrin seem to place it by the side of cam- 
phor, between the resins and volatile oils. The propriety of 
this position may be doubted, as camphor, and those stearop- 
tenes analogous to it from the volatile oils, are wholly vola- 
tile ; hence, as one-half of both liriodendrin and the principle 
from Magnolia, is constituted of a non-volatile resin, the im- 
propriety of giving them that situation is evident. It is more 
probable that these principles are compounds of a resin and a 
volatile principle analogous to the volatile oils, and that their 
peculiar taste depends on the latter. 
What part this principle plays in the remedial influence 
of the bark has not been determined, but it is more than 
probable that the volatile oil acts most prominently, and may 
indeed, enter into the composition of the crystalline prin- 
ciple. 
