MYETACB^B 367
OIL OF EUCALYPTUS QUADRANQULATA.
The characters of this oil are as follows :—
Specific gravity 0-9064
Optical rotation + 10-6°
Refractive index 1-4692 at 16°
Yield 0-69 per cent.
It contains ^-pinene and eucalyptol.
OIL OF EUCALYPTUS EADIATA.
This tree is known as " White-top Peppermint'' in New South
Wales. The oil has the following values :—
Specific gravity 0-869 to 0-875
Optical rotation - 64-8° „ - 77'8°
Refractive index 14863 at 16°
Yield 1-22 to 188 per cent.
It contains pinene, phellandrene, eucalyptol, and piperitone.
OIL OF EUCALYPTUS EBDUNCA.
This is a white gum found in Western Australia. The oil has the
following characters:—
Specific gravity 09097
Optical rotation + 12-1°
Refractive index 1-4720 at 16° ,
Yield 1-2 per cent.
It contains ^-pinene, eucalyptol (about 40 per cent.), and aroma-
dendrene.
College of Dentistry U. S. C,
OIL OF EUCALYPTUS EEGNANS.
This tree is a Tasmanian " Swamp Gum ". Its oil has the following
characters:—
Specific gravity 0-880 to 0-888
Optical rotation - 28-4° „ - 31-1°
Refractive index 1-4882 to 14901 at 20
°
Yield 0'8 per cent.
It contains phellandrene, eudesmol, geranyl acetate, piperitone,
traces of eucalyptol, and a sesquiterpene.
OIL OF EUCALYPTUS EBSINIFEBA.
This oil has the following values :—
Specific gravity 0-9098
Optical rotation + 2'2°
Refractive index 1-4755 at 16°
Yield 0-414 per cent.
It contains eucalyptol.OIL OF EUCALYPTUS EISDONI.
This oil has the following characters :—-
Specific gravity 0'9045 to 0*916
Optical rotation - 0-3° to - 14-6°
Refractive index 1-4733 at 16°
Yield 1'35 per cent.
It contains eucalyptol, phellandrene, and probably piperitone and
amyl acetate.