370 ODOROGRAPHIA. 
compounds of similar composition, it was eventually found to be 
identical with Linalool, which was discovered by Semmler in 
Mexican Lignaloe oil *. Linalool and its acetic ester are also 
contained in Petit grain oil. 
RosEMARY. 
Although the genus Rosmarinus consists of but one species, the 
aspect of the plant in different countries and soils presents differ- 
ences easily perceptible to the eye of the cultivator, and great 
differences are recognized in the fragrance of the perfume developed 
in its leaves. The English oil has a greater value per ounce than 
some of the foreign oils have per pound, and this difference is only 
in a slight degree due to more careful distillation. The difference 
in the physical characters of the English and foreign oils is also 
very marked. 
Rosmarinus officinalis is, in its general appearance, a dense 
branching shrub, with linear sessile leaves, stalkless, and the edges 
recurved, green, smooth and shining above, and whitish beneath. 
The pale blue blossoms, variegated with purple and white, make 
their appearance early in the summer. The plant is evergreen, 
and rises to a height of 4 or 5 feet in some situations; but in very 
calcareous soil it is much smaller, although more fragrant and more 
hardy. When the roots are well drained the plant will stand severe 
frosts, although itis a native of the South of Europe ; but in rich 
moist land it is far more susceptible to frost. The generic name 
Rosmarinus is evidently derived from the Latin—ros, dew, and 
marinus, in allusion to its inhabiting the sea-coast. There is a 
white-striped leaf variety, called the “silver rosemary,” and a 
yellow-striped variety, called the “ golden rosemary,” but they 
are not usually cultivated. 
In establishing a plantation it is not well to risk planting foreign 
seed, as they may produce rubbish; but preferably obtain cuttings 
from English-grown plants and patiently multiply them. If 
planted in August cuttings strike rapidly, especially if pulled off 
with a “ heel” by bending back a young shoot until it separates 
from the branch. These can be struck in light loam in boxes 
holding about fifty each ; they can then be put in the shade and 
* Ber. Deutsch. chem. Ges. xxiv. p. 207. 
