346 A COMPENDIUM OF 
nual plant arises to the height of 4 or 5 feet, 
the branches adorned with ovate-lanceolate 
leaves; the lower ones are often divided into 
three lobes, whilst the upper ones are undi- 
vided. The plant is ornamented with solitary 
red and white flowers of tubular form, with the 
lower lip larger than the upper one. Inserted 
within the tube are four connected stamens and 
the rudiments of a fifth one. Fruit, a capsule, 
oblong in shape, with four cells and numerous 
seeds, which are small, oval in shape, and of a 
yellow color, The oil is expressed from the 
seeds in the same manner as the flax-seed, and 
occurs as a yellow, inodorous, transparent, 
bland liquid, not prone to become rancid by 
keeping, and contains about 75 percent of o/ezn, 
20 per cent of pa/mitin, and about 5 per cent of 
resin and myristin. Oilof denne is anon-drying 
oil, and is used very much as an adjunct to 
food. The leaves are rich in mucilage, and 
may be used as a demulcent in many inflam- 
matory diseases. See Dispensatory. 
Oleum Theobromez, Theobroma Oil, Cacao 
Butter. This fixed oil or butter, as it is com- 
monly termed, is obtained from the seed of the 
Theobroma Cacao or Chocolate Nut,—Natural 
order Sterculiaceea. The modes of preparing 
this substance are three—by decoction, by act- 
ual solvents, and by expression between two 
hot plates of metal; the latter is that usually 
adopted. The yield of the oil is between 40 
and 45 per cent, and it has a specific gravity of 
about 0.90; itis firmer than tallow, and melts 
at about 95 degrees F, The butter is of a 
creamy white appearance, with little or no 
