OILS. 261 
cymene, which, after repeated rectification over sodium, boiled at 
773° to 174°. 
The camphoroidal body, Cy) Hig O, is a colourless oily liquid 
which becomes faintly yellowish on exposure to light, boils at 216° 
to 218°, is insoluble in aqueous potash, and yields cymene when 
distilled with phosphorus pentasulphide. Its analysis gave numbers 
intermediate between those required by the formulz C,) Hy, O and 
C,, H,,O, but the reactions of the body show that it is not an 
oxycymene. (Watts’ Dict., 3rd Suppt., Part i., p. 761.) 
Eucalyptol is employed as a therapeutic agent in diphtheritic 
and bronchial affections. About one teaspoonful, with half a pint 
of water, is placedin the inhaler. It is also administered internally 
in mucilage, syrup, or glycerine, the dose being from three to five 
drops in those vehicles. 
Lucaly ptene (see ‘‘ Eucalyptol”’). 
Oppenheim and Pfaff have examined Eucalyptus oil (probably 
obtained from £. odorata and £. amygdalina). By repeated 
treatment with potash, washing with water, and fractionation, it 
yielded Eucalyptene (Ci His), boiling at 172—175° and having a 
vapour-density of 68.55 and 68.22 (calc. 68, H=1). This hydro- 
carbon did not form a crystallised compound with hydrochloric 
acid, or yield a crystallised hydrate when left for six months in 
contact with nitric acid and alcohol. When treated with half the 
calculated quantity of iodine it was converted into cymene, Cy Hu, 
which, when oxidised with dilute -nitric acid, yielded paratoluic 
acid, melting at 173°—175°. The crude oil did not yield any 
oxidised compound answering to the Eucalyptol of Cléez. ( Watts’ 
fei ata Suppt. Pt. i., p. 761.) 
Algeria and California are now powerful competitors with 
Australia in the production of Eucalyptus oil. It is affirmed that 
Algeria alone is now in a position to supply the whole world with 
Eucalyptus globulus oil, and that a large quantity is available from 
California, where it is produced as a bye-product in the manufac- 
ture of anti-calcaire preparation for boilers. The production of 
Eucalyptus oil appears, moreover, to be increasing in Australia, 
where it has spread from Victoria* to South Australia, whilst in 
* Eucalyptus oil is distilled in quantity in New South Wales. 
