358 A COMPENDIUM OP 
This yellow or yellowish-brown oil has a spe- 
cific gravity of 0.94, and boiling at 356° F. 
(180° C.), with an odor and taste decidedly 
camphor-like. This oil isa true hydrocarbon, 
and congeals or crystallizes on the application 
of cold. The medical properties are rubefa- 
cient and resolvent, and used in the form of 
liniment. 
Oleum Carui, Caraway Oil. This volatile 
oil is obtained by distillation from the fruit of 
the little plant Carum Carui.—Natural order 
Umbellifere. As we have already described 
the plant, it is unnecessary to again allude to 
it. The oilis of a pale yellow, becoming by 
age of a handsome brown color, and somewhat 
viscid. It has the odor of the fruit and an aro- 
matic, acrid taste, and is said to consist of two 
liquid oils of different boiling points and easily 
Separated by distillation—one termed carvene, 
Specific gravity 0.861, and the other called car- 
vol, the specific gravity of which is 0.953. 
Caraway Oil is rarely used alone, but as an ad- 
juvant is highly thought of to prevent the 
gtiping of other medicines. Used in pills of 
ALOES and in SPIRITS OF JUNIPER CO, 
Oleum Chenopodii, American Worm Seed 
Oil. A volatile oil obtained by distillation 
from the fruit of the small plant, Chenopodium 
Ambrosioides. Variety Anthelminticum. — 
Natural order Chenopodiacee, This is truly 
an American product, and the best is prepared 
near the city of Baltimore, Md. When re- 
cently distilled this oil is of a light straw color 
but becomes by age and exposure of a brown 
or red-brown tinge. Odor, peculiar and of its 
