BOTANIC MATERIA MEDICA, 361 
Oleum Cubebz, Cubeb Oil.—Obtained by 
distilling the fruit of the Cubebe Officinale with 
water, The berries yield about one ounce of 
oil to the pound, and when recently distilled 
the oil has a green color, but on standing for 
some time assumes a yellow tinge. Odor that 
of cubebs, with a warm, aromatic taste, some- 
what camphoraceous. Contains about one-half 
the quantity of hydrocarbon of the volatile 
oils already described. Specific gravity about 
0.92. By age and exposure, deposits crystals 
of stearopten; which is the camphor peculiar to 
many of the essential oils. 
The Oil of Cubebs is used instead of the 
Oleoresin, and the powdered fruit, in form of 
an emulsion or in capsules, in doses of 10 drops 
(o.6 gram), and for the same diseases, 
Oleum Erigerontis, Fleabane Oil. A vola- 
tile oil distilled from the small plant Erigeron 
Canadense.—Natural order Composite. Said 
to consist of two distinct oils, as it begins to 
boil at 310° F., and the temperature continues 
to rise to 365° F.; neutral to test paper; speci- 
fic gravity about 0.85; very limpid, and of light 
straw color. Its medical effects are astringent 
and hzmostatic. It is given in doses of 10 to 
30 drops (0.6 to 1.0 gram), on sugar, or in form 
of an emulsion. 
Oleum Eucalypti, Eucalyptus Oil. Ob- 
tained from the Eucalyptus globulus and other 
species of the Eucalypti.—Natural order Myr- 
tacez. This volatile oil is distilled from the 
fresh leaves of the tree, and occurs in com- 
merce as a colorless or pale yellow, limpid liquid 
having a peculiar aromatic odor, with a pun- 
23 
