!:,(') ,/. G. Earl: Essential Oils of Australian Myrtaceae. 



Cineole (eucalyptol).— The cineole-iodol addition compound, melting 

 at 113° C, after recrystallisation from benzene, was readily obtained 

 from a portion of fraction III. 



Aromad'.ndrene. — The residue, V., gave the colour reactions attrib- 

 uted by Baker and Smith to aromadendrene. 



Summary. 



The following approximate composition may be assigned to the 



oil:— 



Pinene - - - - - 20-25% 



Phellandrene - - - - - 10-15% 



Cineole 55-60% 



Aromadendrene - 10-15% 

 Alcohols, free, and combined as esters, 



up to - - - - - 5° 



I have to acknowledge my thanks to Professor Masson for en- 

 couragement and permission to use the University laboratories, to Dr. 

 Green for many suggestions in the course of the work, and to Mr. 

 St. John for assistance in the distillation of the oil from the leaves. 



