-A volatile oil extracted by mechanical means from fresh orange peel.

Preparation. - It is prepared from the outer part of the rind by expression; by putting it in hot water and skimming off the oil; or by rubbing it in a kind of bowl lined with short spikes in the same way as oil of lemons.

Characters. - Pale yellow, has the smell of oranges, and an aromatic somewhat bitter taste. By keeping it becomes thicker, and gets a turpentinelike taste. This may be prevented by mixing the fresh oil with 5 per cent. of alcohol and decanting from the sediment.

Composition. - Contains two camphenes and a glucoside, hesperidin.

Officinal Preparations.

dose.

Elixir Aurantii ........................................................

.2-8 fl. dr. (4-30 c.c.)

Spititus Aurantii ...................................................

.2-4 fl. dr. (4-15 c.c.)

Spiritus Myrciae .......................................................

.Used as perfume.

Action and Use. - Externally it is rubefacient. Internally, in large doses, it is an irritant poison. It is used as a flavouring matter.