pedunculata, L. viridis, L. dentata, L. heterophylla, L. pyrenaica, L.
pinnata, L. coronopifolia, L. abrotonoides, L. Lawii_, and _L.
multifida_.
The _L. multifida_ is synonymous with _L. Burmanii_. In Spain the
therapeutic properties of _L. dentata_ are alleged to be even more
marked than in the oils of any of the other species of lavender. It is
said to promote the healing of sluggish wounds, and when used in the
form of inhalation to have given good results in cases of severe
catarrh, and even in cases of diphtheria. In odor this oil strongly
suggests rosemary and camphor. Its specific gravity is 0.926 at 15 deg. C.
It distills almost completely between 170 deg. and 200 deg..
The specific gravity of the oil of _L. vera_ (according to Flueckiger and
Hanbury, _Pharmacographia_) ranges between 0.87 and 0.94. The same
authorities state that in a tube of 50 millimeters the plane of
polarization is diverted 4.2 deg. to the left.
Dr. Gladstone found (_Jnl. Ch. Soc._, xviii., 3) that a sample of pure
oil of _L. vera_, obtained from Dr. S. Piesse, indicated a specific
gravity of 0.8903 at 15 deg.
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