_Licari oil, linaloë oil_, is obtained, partially in Mexico and partially in Cayenne, from the wood of the white cedar (_bois de rose femelle_), _Licari canali_. It is limpid, has an agreeable odor, reminding one of roses, and does not become solid at 4° F. Its specific gravity is 0.868 at 59° F., and it boils at 388.4° F.
_Marjoram oils._--By distilling the leaves of _Origanum marjorana, L._, the _marjoram oil_ (_oleum marjoranæ_) is obtained. It is yellowish or green-yellowish, but becomes reddish-brown by age. If badly kept it finally becomes thickly-fluid and sticky, sometimes depositing a reddish stearoptene. The odor of marjoram oil is less agreeable than that of the plant, and the taste peculiar, bitter, cooling. The oil dissolves readily in 90 per cent. alcohol, and when mixed with equal parts of it yields a clear solution. Its specific gravity is 0.89 to 0.91. It should be kept in entirely filled, well-closed bottles in a shady place. On coming in contact with air, it absorbs oxygen with avidity and forms a white, odorless, crystalline mass.
From _Origanum vulgare, L._, the ordinary marjoram oil (_oleum origani vulgaris_) is obtained. It is yellowish or reddish, limpid, of specific gravity 0.90 to 0.95, and has a camphor-like odor.
_Spanish marjoram_ (_oleum origani cretici_) is obtained by distillation from the flowering plants of several varieties of marjoram (_Or. creticum_, _Or. hirtum_, _Or. smyrnæum_). It is brought into commerce from Trieste, Smyrna, Salonica, and other Mediterranean seaports. The oil exported from France appears to be derived from another variety of marjoram; at least it shows a different behavior and approaches more the ordinary marjoram oil. The genuine oil is thickly-fluid, generally yellow-brown; of specific gravity O.95 to O.97; has a strong, aromatic odor, and produces upon the tongue a sharp continued burning. It dissolves in equal parts of 90 per cent. alcohol. It is chiefly adulterated with copaiba oil, the presence of which can be recognized by the oil dissolving with greater difficulty.
The marjoram oils are but little used for perfuming purposes.
_Mignonette oil_ (_oleum résédæ_). The well-known mignonette, _Réséda odoratissima_, yields a thick yellowish oil, either by maceration and absorption, or by extraction with ether or petroleum-ether. It has a penetrating, disagreeable odor, which can only be rendered agreeable by greatly diluting the oil. In gathering the flowers care must be had not to mix them with leaves, as this spoils the odor of the oil.