BOTANIC MATERIA MEDICA, 359 
own kind; taste, like the odor, peculiar and ac- 
rid. Specific gravity 0.90, boiling point less 
than the clove oil, but like the aforesaid, it con- 
tains two distinct oils, one light and the other _ 
heavy, which reacts with acid hydrochloric, 
forming an analogue to the turpentine oil. 
This neutral volatile oil is used only as an an- 
thelmintic and given in doses of 4 to 8 drops 
(0.24 too.5 gram) in form of an emulsion. In 
over doses it has been known to destroy life, 
therefore every precaution should be taken to 
guard against an accident. 
Oleum Cinnamoni, Cinnamon Oi]. A vola- 
tile oil distilled from the Cinnamonum Zeylani- 
cum.—Natural order Lauracee, The Chinese 
variety yields the oil of Cassia. Whilst the 
Ceylon furnishes the true oil of Cinnamon. As 
the oil is distilled from the leaf, bark and root, 
it seems undecided which part of the tree fur- 
nishes the true oil. It is asserted that 80 pounds 
of the bark yield something over 2 ounces of 
the lighter oil (true oil) and about 5 ounces of 
the heavy, which is really the oil of Cassia, al- 
though it is again asserted that both the light 
and heavy oils exist in the one. The oil of 
Ceylon Cinnamon differs only in three particu- 
lars from the Cassia oil, viz., in an acid reac- 
tion, a finer flavor, and higher price. When 
recently distilled it is almost amber colored, 
but ultimately becomes red by age. It is com- 
posed of Cinnamyl Hydrid and a hydrocarbon 
analagous to turpentine oil. Acid nitric con- 
verts the oil into a crystalline mass; when 
heated with caustic potash, Czunamic acid is 
formed, the crystals of which occur in brilliant 
